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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:05,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:05,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:05,660 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:05,661 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:05,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:05,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:05,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:05,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:05,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:05,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:05,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:05,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:05,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:05,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:05,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:05,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:05,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:05,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:05,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:05,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:05,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:05,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:05,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:05,707 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:05,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:05,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:05,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:05,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:05,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:05,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:05,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:05,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:05,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:05,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:05,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:05,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:05,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:05,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:05,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:05,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:05,719 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 03:15:05,734 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:05,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:05,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:05,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:05,738 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:05,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:05,739 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:05,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:05,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:05,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:05,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:05,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:05,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:05,741 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:05,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:05,741 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:05,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:05,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:05,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:05,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:05,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:05,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:05,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:05,744 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:05,744 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:05,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:05,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:05,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:05,745 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 03:15:06,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:06,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:06,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:06,033 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:06,034 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:06,034 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product28.cil.c [2019-10-15 03:15:06,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2ca812d/ce9aecde7c6546d49dd13e9ebce50035/FLAG311becc07 [2019-10-15 03:15:06,797 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:06,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product28.cil.c [2019-10-15 03:15:06,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2ca812d/ce9aecde7c6546d49dd13e9ebce50035/FLAG311becc07 [2019-10-15 03:15:06,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2ca812d/ce9aecde7c6546d49dd13e9ebce50035 [2019-10-15 03:15:06,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:06,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:06,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:06,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:06,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:06,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a0daa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:06, skipping insertion in model container [2019-10-15 03:15:06,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:06" (1/1) ... [2019-10-15 03:15:06,985 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:07,053 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:07,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:07,949 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:08,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:08,205 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:08,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08 WrapperNode [2019-10-15 03:15:08,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:08,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:08,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:08,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:08,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (1/1) ... [2019-10-15 03:15:08,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (1/1) ... [2019-10-15 03:15:08,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (1/1) ... [2019-10-15 03:15:08,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (1/1) ... [2019-10-15 03:15:08,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (1/1) ... [2019-10-15 03:15:08,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (1/1) ... [2019-10-15 03:15:08,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (1/1) ... [2019-10-15 03:15:08,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:08,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:08,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:08,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:08,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (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 03:15:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:08,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:08,449 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 03:15:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:08,450 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:08,451 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:08,452 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:08,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:08,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:08,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:08,458 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:08,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:08,462 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 03:15:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 03:15:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:08,463 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:08,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:08,465 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:08,466 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:08,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:08,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:08,468 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:08,469 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:08,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:08,471 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:08,472 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 03:15:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 03:15:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:08,475 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:08,476 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:08,477 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 03:15:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 03:15:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:12,943 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:12,943 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:12,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:12 BoogieIcfgContainer [2019-10-15 03:15:12,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:12,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:12,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:12,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:12,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:06" (1/3) ... [2019-10-15 03:15:12,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552d3a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:12, skipping insertion in model container [2019-10-15 03:15:12,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:08" (2/3) ... [2019-10-15 03:15:12,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552d3a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:12, skipping insertion in model container [2019-10-15 03:15:12,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:12" (3/3) ... [2019-10-15 03:15:12,955 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product28.cil.c [2019-10-15 03:15:12,966 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:12,977 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:13,043 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:13,071 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:13,071 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:13,072 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:13,072 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:13,072 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:13,072 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:13,072 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:13,072 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:13,105 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states. [2019-10-15 03:15:13,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-15 03:15:13,129 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:13,130 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, 1, 1, 1] [2019-10-15 03:15:13,132 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:13,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:13,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1013542128, now seen corresponding path program 1 times [2019-10-15 03:15:13,147 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:13,148 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574227941] [2019-10-15 03:15:13,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:13,148 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:13,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:13,825 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 03:15:13,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574227941] [2019-10-15 03:15:13,826 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:13,827 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:13,827 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031362984] [2019-10-15 03:15:13,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:13,837 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:13,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:13,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:13,854 INFO L87 Difference]: Start difference. First operand 373 states. Second operand 2 states. [2019-10-15 03:15:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:13,931 INFO L93 Difference]: Finished difference Result 519 states and 617 transitions. [2019-10-15 03:15:13,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:13,933 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-15 03:15:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:13,953 INFO L225 Difference]: With dead ends: 519 [2019-10-15 03:15:13,953 INFO L226 Difference]: Without dead ends: 331 [2019-10-15 03:15:13,959 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 03:15:13,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-10-15 03:15:14,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 331. [2019-10-15 03:15:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2019-10-15 03:15:14,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 393 transitions. [2019-10-15 03:15:14,044 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 393 transitions. Word has length 129 [2019-10-15 03:15:14,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:14,050 INFO L462 AbstractCegarLoop]: Abstraction has 331 states and 393 transitions. [2019-10-15 03:15:14,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:14,051 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 393 transitions. [2019-10-15 03:15:14,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-15 03:15:14,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:14,061 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:14,061 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:14,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:14,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1455665787, now seen corresponding path program 1 times [2019-10-15 03:15:14,066 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:14,066 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981429218] [2019-10-15 03:15:14,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:14,066 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:14,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:14,347 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 03:15:14,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981429218] [2019-10-15 03:15:14,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:14,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:14,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365213483] [2019-10-15 03:15:14,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:14,356 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:14,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:14,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:14,356 INFO L87 Difference]: Start difference. First operand 331 states and 393 transitions. Second operand 3 states. [2019-10-15 03:15:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:14,439 INFO L93 Difference]: Finished difference Result 504 states and 588 transitions. [2019-10-15 03:15:14,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:14,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-15 03:15:14,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:14,444 INFO L225 Difference]: With dead ends: 504 [2019-10-15 03:15:14,445 INFO L226 Difference]: Without dead ends: 333 [2019-10-15 03:15:14,447 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 03:15:14,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-10-15 03:15:14,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2019-10-15 03:15:14,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2019-10-15 03:15:14,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 395 transitions. [2019-10-15 03:15:14,507 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 395 transitions. Word has length 130 [2019-10-15 03:15:14,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:14,508 INFO L462 AbstractCegarLoop]: Abstraction has 333 states and 395 transitions. [2019-10-15 03:15:14,508 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:14,508 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 395 transitions. [2019-10-15 03:15:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-15 03:15:14,515 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:14,515 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 03:15:14,515 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:14,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:14,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1056828107, now seen corresponding path program 1 times [2019-10-15 03:15:14,516 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:14,516 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151270189] [2019-10-15 03:15:14,517 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:14,517 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:14,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:14,720 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 03:15:14,720 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151270189] [2019-10-15 03:15:14,721 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:14,721 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:14,721 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911179999] [2019-10-15 03:15:14,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:14,722 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:14,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:14,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:14,723 INFO L87 Difference]: Start difference. First operand 333 states and 395 transitions. Second operand 3 states. [2019-10-15 03:15:14,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:14,779 INFO L93 Difference]: Finished difference Result 646 states and 794 transitions. [2019-10-15 03:15:14,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:14,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2019-10-15 03:15:14,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:14,786 INFO L225 Difference]: With dead ends: 646 [2019-10-15 03:15:14,786 INFO L226 Difference]: Without dead ends: 371 [2019-10-15 03:15:14,792 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 03:15:14,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-10-15 03:15:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 370. [2019-10-15 03:15:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2019-10-15 03:15:14,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 460 transitions. [2019-10-15 03:15:14,838 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 460 transitions. Word has length 135 [2019-10-15 03:15:14,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:14,840 INFO L462 AbstractCegarLoop]: Abstraction has 370 states and 460 transitions. [2019-10-15 03:15:14,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:14,840 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 460 transitions. [2019-10-15 03:15:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:15:14,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:14,848 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 03:15:14,848 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:14,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:14,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1879652668, now seen corresponding path program 1 times [2019-10-15 03:15:14,849 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:14,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590358773] [2019-10-15 03:15:14,849 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:14,851 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:14,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:15,433 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 03:15:15,434 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590358773] [2019-10-15 03:15:15,434 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:15,434 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-15 03:15:15,434 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472800461] [2019-10-15 03:15:15,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:15:15,436 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:15,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:15:15,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:15:15,441 INFO L87 Difference]: Start difference. First operand 370 states and 460 transitions. Second operand 21 states. [2019-10-15 03:15:23,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:23,207 INFO L93 Difference]: Finished difference Result 726 states and 874 transitions. [2019-10-15 03:15:23,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 03:15:23,208 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 136 [2019-10-15 03:15:23,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:23,213 INFO L225 Difference]: With dead ends: 726 [2019-10-15 03:15:23,213 INFO L226 Difference]: Without dead ends: 551 [2019-10-15 03:15:23,216 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-15 03:15:23,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2019-10-15 03:15:23,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 544. [2019-10-15 03:15:23,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2019-10-15 03:15:23,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 664 transitions. [2019-10-15 03:15:23,266 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 664 transitions. Word has length 136 [2019-10-15 03:15:23,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:23,268 INFO L462 AbstractCegarLoop]: Abstraction has 544 states and 664 transitions. [2019-10-15 03:15:23,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:15:23,268 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 664 transitions. [2019-10-15 03:15:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-15 03:15:23,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:23,271 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] [2019-10-15 03:15:23,272 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:23,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:23,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1993117976, now seen corresponding path program 1 times [2019-10-15 03:15:23,272 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:23,273 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522891600] [2019-10-15 03:15:23,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:23,273 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:23,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:23,796 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 03:15:23,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522891600] [2019-10-15 03:15:23,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:23,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-15 03:15:23,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690165683] [2019-10-15 03:15:23,797 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-15 03:15:23,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:23,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-15 03:15:23,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-15 03:15:23,798 INFO L87 Difference]: Start difference. First operand 544 states and 664 transitions. Second operand 23 states. [2019-10-15 03:15:25,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:25,373 INFO L93 Difference]: Finished difference Result 622 states and 754 transitions. [2019-10-15 03:15:25,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-15 03:15:25,374 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 142 [2019-10-15 03:15:25,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:25,378 INFO L225 Difference]: With dead ends: 622 [2019-10-15 03:15:25,378 INFO L226 Difference]: Without dead ends: 586 [2019-10-15 03:15:25,379 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 03:15:25,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2019-10-15 03:15:25,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 581. [2019-10-15 03:15:25,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 581 states. [2019-10-15 03:15:25,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 701 transitions. [2019-10-15 03:15:25,416 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 701 transitions. Word has length 142 [2019-10-15 03:15:25,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:25,417 INFO L462 AbstractCegarLoop]: Abstraction has 581 states and 701 transitions. [2019-10-15 03:15:25,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-15 03:15:25,417 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 701 transitions. [2019-10-15 03:15:25,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-15 03:15:25,422 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:25,422 INFO L380 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, 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] [2019-10-15 03:15:25,423 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:25,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:25,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1451128363, now seen corresponding path program 1 times [2019-10-15 03:15:25,423 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:25,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4566623] [2019-10-15 03:15:25,424 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:25,424 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:25,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:25,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 03:15:26,198 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4566623] [2019-10-15 03:15:26,199 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:26,199 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 03:15:26,199 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339894670] [2019-10-15 03:15:26,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 03:15:26,200 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:26,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 03:15:26,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:15:26,201 INFO L87 Difference]: Start difference. First operand 581 states and 701 transitions. Second operand 28 states. [2019-10-15 03:15:34,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:34,869 INFO L93 Difference]: Finished difference Result 1196 states and 1417 transitions. [2019-10-15 03:15:34,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-15 03:15:34,872 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 241 [2019-10-15 03:15:34,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:34,883 INFO L225 Difference]: With dead ends: 1196 [2019-10-15 03:15:34,883 INFO L226 Difference]: Without dead ends: 993 [2019-10-15 03:15:34,886 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=315, Invalid=3717, Unknown=0, NotChecked=0, Total=4032 [2019-10-15 03:15:34,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2019-10-15 03:15:34,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 922. [2019-10-15 03:15:34,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 922 states. [2019-10-15 03:15:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1086 transitions. [2019-10-15 03:15:34,943 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1086 transitions. Word has length 241 [2019-10-15 03:15:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:34,944 INFO L462 AbstractCegarLoop]: Abstraction has 922 states and 1086 transitions. [2019-10-15 03:15:34,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 03:15:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1086 transitions. [2019-10-15 03:15:34,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-15 03:15:34,950 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:34,950 INFO L380 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, 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] [2019-10-15 03:15:34,951 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:34,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:34,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1128841092, now seen corresponding path program 1 times [2019-10-15 03:15:34,951 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:34,952 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136881806] [2019-10-15 03:15:34,952 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:34,952 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:34,952 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:35,171 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 03:15:35,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136881806] [2019-10-15 03:15:35,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:35,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:15:35,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117120038] [2019-10-15 03:15:35,173 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:15:35,174 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:35,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:15:35,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:15:35,174 INFO L87 Difference]: Start difference. First operand 922 states and 1086 transitions. Second operand 10 states. [2019-10-15 03:15:35,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:35,280 INFO L93 Difference]: Finished difference Result 1321 states and 1526 transitions. [2019-10-15 03:15:35,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:15:35,280 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 245 [2019-10-15 03:15:35,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:35,287 INFO L225 Difference]: With dead ends: 1321 [2019-10-15 03:15:35,287 INFO L226 Difference]: Without dead ends: 962 [2019-10-15 03:15:35,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:15:35,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2019-10-15 03:15:35,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 930. [2019-10-15 03:15:35,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 930 states. [2019-10-15 03:15:35,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1092 transitions. [2019-10-15 03:15:35,379 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1092 transitions. Word has length 245 [2019-10-15 03:15:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:35,382 INFO L462 AbstractCegarLoop]: Abstraction has 930 states and 1092 transitions. [2019-10-15 03:15:35,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:15:35,383 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1092 transitions. [2019-10-15 03:15:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-10-15 03:15:35,391 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:35,391 INFO L380 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:35,391 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:35,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:35,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1286624871, now seen corresponding path program 1 times [2019-10-15 03:15:35,392 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:35,393 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658576121] [2019-10-15 03:15:35,393 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:35,393 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:35,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:36,067 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 03:15:36,067 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658576121] [2019-10-15 03:15:36,068 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129949402] [2019-10-15 03:15:36,068 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 03:15:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:36,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 3001 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:15:36,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:15:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-15 03:15:37,077 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:15:37,871 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 03:15:37,872 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [694711813] [2019-10-15 03:15:37,911 INFO L162 IcfgInterpreter]: Started Sifa with 203 locations of interest [2019-10-15 03:15:37,911 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:15:37,922 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:15:37,932 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:15:37,933 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs