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_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:02,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:02,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:02,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:02,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:02,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:02,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:02,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:02,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:02,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:02,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:02,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:02,292 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:02,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:02,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:02,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:02,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:02,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:02,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:02,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:02,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:02,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:02,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:02,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:02,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:02,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:02,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:02,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:02,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:02,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:02,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:02,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:02,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:02,317 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:02,318 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:02,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:02,319 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:02,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:02,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:02,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:02,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:02,322 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 03:15:02,335 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:02,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:02,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:02,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:02,337 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:02,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:02,337 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:02,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:02,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:02,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:02,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:02,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:02,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:02,339 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:02,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:02,339 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:02,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:02,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:02,340 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:02,340 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:02,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:02,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:02,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:02,341 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:02,341 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:02,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:02,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:02,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:02,342 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 03:15:02,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:02,648 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:02,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:02,654 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:02,654 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:02,655 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2019-10-15 03:15:02,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff42fc2f/05a0fe4d7aab47979a747910251613aa/FLAGe9a5b1afe [2019-10-15 03:15:03,355 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:03,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product24.cil.c [2019-10-15 03:15:03,389 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff42fc2f/05a0fe4d7aab47979a747910251613aa/FLAGe9a5b1afe [2019-10-15 03:15:03,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ff42fc2f/05a0fe4d7aab47979a747910251613aa [2019-10-15 03:15:03,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:03,582 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:03,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:03,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:03,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:03,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:03" (1/1) ... [2019-10-15 03:15:03,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1763af5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:03, skipping insertion in model container [2019-10-15 03:15:03,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:03" (1/1) ... [2019-10-15 03:15:03,600 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:03,677 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:04,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:04,491 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:04,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:04,762 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:04,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04 WrapperNode [2019-10-15 03:15:04,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:04,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:04,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:04,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:04,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (1/1) ... [2019-10-15 03:15:04,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (1/1) ... [2019-10-15 03:15:04,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (1/1) ... [2019-10-15 03:15:04,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (1/1) ... [2019-10-15 03:15:04,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (1/1) ... [2019-10-15 03:15:04,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (1/1) ... [2019-10-15 03:15:04,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (1/1) ... [2019-10-15 03:15:04,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:04,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:04,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:04,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:04,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (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 03:15:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:05,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:05,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:05,034 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:05,035 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:05,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:05,037 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:05,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:05,039 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:05,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:05,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:05,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:05,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:05,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:05,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:05,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:05,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:15:05,049 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:15:05,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:05,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 03:15:05,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:15:05,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:05,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:05,051 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:05,051 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:05,051 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:05,051 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:05,051 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:05,051 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:05,052 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 03:15:05,052 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:15:05,052 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:15:05,052 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:05,052 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:05,052 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:05,053 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:05,053 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:05,053 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:05,053 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:05,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:05,054 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:05,054 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:15:05,054 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:15:05,054 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:15:05,054 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:15:05,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:15:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:05,055 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:15:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:05,056 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:05,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:05,062 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:05,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:05,064 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:05,065 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:05,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:05,067 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:05,068 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:05,069 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-15 03:15:05,070 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 03:15:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:15:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:05,071 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:15:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:15:05,072 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:15:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:15:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 03:15:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:15:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:15:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:05,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:09,478 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:09,478 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:09,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:09 BoogieIcfgContainer [2019-10-15 03:15:09,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:09,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:09,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:09,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:09,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:03" (1/3) ... [2019-10-15 03:15:09,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b8c822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:09, skipping insertion in model container [2019-10-15 03:15:09,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:04" (2/3) ... [2019-10-15 03:15:09,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b8c822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:09, skipping insertion in model container [2019-10-15 03:15:09,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:09" (3/3) ... [2019-10-15 03:15:09,488 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product24.cil.c [2019-10-15 03:15:09,499 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:09,508 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:09,519 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:09,548 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:09,548 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:09,548 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:09,548 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:09,548 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:09,549 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:09,549 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:09,549 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:09,578 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states. [2019-10-15 03:15:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-15 03:15:09,595 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:09,596 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] [2019-10-15 03:15:09,599 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:09,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:09,605 INFO L82 PathProgramCache]: Analyzing trace with hash -325070676, now seen corresponding path program 1 times [2019-10-15 03:15:09,617 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:09,617 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532680350] [2019-10-15 03:15:09,617 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:09,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:09,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:10,213 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 03:15:10,213 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532680350] [2019-10-15 03:15:10,215 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:10,215 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:10,216 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129143620] [2019-10-15 03:15:10,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:10,225 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:10,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:10,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:10,243 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 2 states. [2019-10-15 03:15:10,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:10,351 INFO L93 Difference]: Finished difference Result 567 states and 662 transitions. [2019-10-15 03:15:10,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:10,353 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 118 [2019-10-15 03:15:10,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:10,385 INFO L225 Difference]: With dead ends: 567 [2019-10-15 03:15:10,385 INFO L226 Difference]: Without dead ends: 362 [2019-10-15 03:15:10,396 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 03:15:10,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2019-10-15 03:15:10,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2019-10-15 03:15:10,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2019-10-15 03:15:10,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 423 transitions. [2019-10-15 03:15:10,510 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 423 transitions. Word has length 118 [2019-10-15 03:15:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:10,512 INFO L462 AbstractCegarLoop]: Abstraction has 362 states and 423 transitions. [2019-10-15 03:15:10,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 423 transitions. [2019-10-15 03:15:10,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-15 03:15:10,517 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:10,518 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] [2019-10-15 03:15:10,518 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:10,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:10,519 INFO L82 PathProgramCache]: Analyzing trace with hash -25434280, now seen corresponding path program 1 times [2019-10-15 03:15:10,519 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:10,519 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172244742] [2019-10-15 03:15:10,520 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:10,520 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:10,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:10,790 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 03:15:10,791 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172244742] [2019-10-15 03:15:10,791 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:10,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:10,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694705678] [2019-10-15 03:15:10,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:10,797 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:10,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:10,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:10,797 INFO L87 Difference]: Start difference. First operand 362 states and 423 transitions. Second operand 3 states. [2019-10-15 03:15:10,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:10,855 INFO L93 Difference]: Finished difference Result 552 states and 634 transitions. [2019-10-15 03:15:10,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:10,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-15 03:15:10,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:10,859 INFO L225 Difference]: With dead ends: 552 [2019-10-15 03:15:10,860 INFO L226 Difference]: Without dead ends: 364 [2019-10-15 03:15:10,861 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 03:15:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-10-15 03:15:10,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2019-10-15 03:15:10,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-10-15 03:15:10,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 425 transitions. [2019-10-15 03:15:10,888 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 425 transitions. Word has length 119 [2019-10-15 03:15:10,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:10,889 INFO L462 AbstractCegarLoop]: Abstraction has 364 states and 425 transitions. [2019-10-15 03:15:10,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:10,889 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 425 transitions. [2019-10-15 03:15:10,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-15 03:15:10,892 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:10,893 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] [2019-10-15 03:15:10,893 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:10,897 INFO L82 PathProgramCache]: Analyzing trace with hash 658312226, now seen corresponding path program 1 times [2019-10-15 03:15:10,898 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:10,898 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229853534] [2019-10-15 03:15:10,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:10,898 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:10,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:11,151 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 03:15:11,151 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229853534] [2019-10-15 03:15:11,151 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:11,152 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:11,152 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806350059] [2019-10-15 03:15:11,153 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:11,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:11,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:11,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:11,154 INFO L87 Difference]: Start difference. First operand 364 states and 425 transitions. Second operand 3 states. [2019-10-15 03:15:11,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:11,191 INFO L93 Difference]: Finished difference Result 712 states and 860 transitions. [2019-10-15 03:15:11,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:11,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-15 03:15:11,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:11,195 INFO L225 Difference]: With dead ends: 712 [2019-10-15 03:15:11,195 INFO L226 Difference]: Without dead ends: 406 [2019-10-15 03:15:11,197 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 03:15:11,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-10-15 03:15:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 405. [2019-10-15 03:15:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2019-10-15 03:15:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 496 transitions. [2019-10-15 03:15:11,217 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 496 transitions. Word has length 131 [2019-10-15 03:15:11,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:11,218 INFO L462 AbstractCegarLoop]: Abstraction has 405 states and 496 transitions. [2019-10-15 03:15:11,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:11,218 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 496 transitions. [2019-10-15 03:15:11,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 03:15:11,221 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:11,221 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] [2019-10-15 03:15:11,221 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:11,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:11,222 INFO L82 PathProgramCache]: Analyzing trace with hash -2006008639, now seen corresponding path program 1 times [2019-10-15 03:15:11,222 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:11,222 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173630403] [2019-10-15 03:15:11,222 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:11,223 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:11,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:11,711 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 03:15:11,711 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173630403] [2019-10-15 03:15:11,712 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:11,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 03:15:11,712 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732263182] [2019-10-15 03:15:11,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 03:15:11,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:11,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 03:15:11,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:15:11,714 INFO L87 Difference]: Start difference. First operand 405 states and 496 transitions. Second operand 19 states. [2019-10-15 03:15:20,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:20,042 INFO L93 Difference]: Finished difference Result 788 states and 927 transitions. [2019-10-15 03:15:20,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-15 03:15:20,043 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 132 [2019-10-15 03:15:20,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:20,048 INFO L225 Difference]: With dead ends: 788 [2019-10-15 03:15:20,048 INFO L226 Difference]: Without dead ends: 596 [2019-10-15 03:15:20,050 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=175, Invalid=1231, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 03:15:20,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-15 03:15:20,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 589. [2019-10-15 03:15:20,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 589 states. [2019-10-15 03:15:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 703 transitions. [2019-10-15 03:15:20,091 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 703 transitions. Word has length 132 [2019-10-15 03:15:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:20,091 INFO L462 AbstractCegarLoop]: Abstraction has 589 states and 703 transitions. [2019-10-15 03:15:20,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 03:15:20,092 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 703 transitions. [2019-10-15 03:15:20,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-15 03:15:20,094 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:20,095 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] [2019-10-15 03:15:20,095 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:20,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:20,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1907937512, now seen corresponding path program 1 times [2019-10-15 03:15:20,096 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:20,096 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343153041] [2019-10-15 03:15:20,096 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:20,096 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:20,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:20,566 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 03:15:20,567 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343153041] [2019-10-15 03:15:20,567 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:20,567 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-15 03:15:20,568 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145501136] [2019-10-15 03:15:20,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:15:20,569 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:20,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:15:20,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=373, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:15:20,570 INFO L87 Difference]: Start difference. First operand 589 states and 703 transitions. Second operand 21 states. [2019-10-15 03:15:22,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:22,008 INFO L93 Difference]: Finished difference Result 638 states and 754 transitions. [2019-10-15 03:15:22,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 03:15:22,008 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 138 [2019-10-15 03:15:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:22,013 INFO L225 Difference]: With dead ends: 638 [2019-10-15 03:15:22,013 INFO L226 Difference]: Without dead ends: 616 [2019-10-15 03:15:22,015 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=193, Invalid=1613, Unknown=0, NotChecked=0, Total=1806 [2019-10-15 03:15:22,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-10-15 03:15:22,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 611. [2019-10-15 03:15:22,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-10-15 03:15:22,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 723 transitions. [2019-10-15 03:15:22,063 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 723 transitions. Word has length 138 [2019-10-15 03:15:22,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:22,064 INFO L462 AbstractCegarLoop]: Abstraction has 611 states and 723 transitions. [2019-10-15 03:15:22,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:15:22,064 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 723 transitions. [2019-10-15 03:15:22,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-10-15 03:15:22,069 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:22,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:22,070 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:22,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:22,070 INFO L82 PathProgramCache]: Analyzing trace with hash -588842617, now seen corresponding path program 1 times [2019-10-15 03:15:22,071 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:22,071 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371062270] [2019-10-15 03:15:22,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:22,071 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:22,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 03:15:22,372 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371062270] [2019-10-15 03:15:22,373 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:22,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:15:22,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804022519] [2019-10-15 03:15:22,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:15:22,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:22,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:15:22,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:15:22,375 INFO L87 Difference]: Start difference. First operand 611 states and 723 transitions. Second operand 8 states. [2019-10-15 03:15:22,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:22,428 INFO L93 Difference]: Finished difference Result 890 states and 1018 transitions. [2019-10-15 03:15:22,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:15:22,430 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 227 [2019-10-15 03:15:22,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:22,434 INFO L225 Difference]: With dead ends: 890 [2019-10-15 03:15:22,435 INFO L226 Difference]: Without dead ends: 611 [2019-10-15 03:15:22,436 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 03:15:22,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2019-10-15 03:15:22,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2019-10-15 03:15:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-10-15 03:15:22,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 721 transitions. [2019-10-15 03:15:22,480 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 721 transitions. Word has length 227 [2019-10-15 03:15:22,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:22,481 INFO L462 AbstractCegarLoop]: Abstraction has 611 states and 721 transitions. [2019-10-15 03:15:22,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:15:22,481 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 721 transitions. [2019-10-15 03:15:22,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-15 03:15:22,485 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:22,486 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:22,486 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:22,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:22,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1875852175, now seen corresponding path program 1 times [2019-10-15 03:15:22,487 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:22,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079712189] [2019-10-15 03:15:22,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:22,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:22,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 03:15:22,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079712189] [2019-10-15 03:15:22,815 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:22,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 03:15:22,816 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709793057] [2019-10-15 03:15:22,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 03:15:22,819 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:22,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 03:15:22,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:15:22,820 INFO L87 Difference]: Start difference. First operand 611 states and 721 transitions. Second operand 11 states. [2019-10-15 03:15:25,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:25,646 INFO L93 Difference]: Finished difference Result 856 states and 973 transitions. [2019-10-15 03:15:25,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:15:25,647 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 232 [2019-10-15 03:15:25,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:25,653 INFO L225 Difference]: With dead ends: 856 [2019-10-15 03:15:25,653 INFO L226 Difference]: Without dead ends: 733 [2019-10-15 03:15:25,655 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 03:15:25,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2019-10-15 03:15:25,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 729. [2019-10-15 03:15:25,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2019-10-15 03:15:25,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 838 transitions. [2019-10-15 03:15:25,728 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 838 transitions. Word has length 232 [2019-10-15 03:15:25,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:25,732 INFO L462 AbstractCegarLoop]: Abstraction has 729 states and 838 transitions. [2019-10-15 03:15:25,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 03:15:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 838 transitions. [2019-10-15 03:15:25,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-15 03:15:25,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:25,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:15:25,740 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:25,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:25,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1453698223, now seen corresponding path program 1 times [2019-10-15 03:15:25,741 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:25,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989663072] [2019-10-15 03:15:25,741 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:25,741 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:25,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 03:15:26,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989663072] [2019-10-15 03:15:26,843 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627814287] [2019-10-15 03:15:26,843 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 03:15:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:27,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 3004 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:15:27,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:15:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2019-10-15 03:15:27,727 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:15:28,326 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-15 03:15:28,327 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1635208678] [2019-10-15 03:15:28,358 INFO L162 IcfgInterpreter]: Started Sifa with 201 locations of interest [2019-10-15 03:15:28,359 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:15:28,366 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:15:28,373 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:15:28,374 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs