/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:26:55,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:26:55,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:26:55,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:26:55,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:26:55,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:26:55,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:26:55,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:26:55,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:26:55,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:26:55,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:26:55,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:26:55,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:26:55,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:26:55,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:26:55,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:26:55,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:26:55,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:26:55,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:26:55,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:26:55,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:26:55,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:26:55,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:26:55,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:26:55,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:26:55,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:26:55,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:26:55,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:26:55,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:26:55,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:26:55,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:26:55,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:26:55,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:26:55,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:26:55,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:26:55,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:26:55,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:26:55,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:26:55,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:26:55,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:26:55,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:26:55,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:26:55,348 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:26:55,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:26:55,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:26:55,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:26:55,351 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:26:55,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:26:55,351 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:26:55,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:26:55,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:26:55,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:26:55,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:26:55,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:26:55,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:26:55,352 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:26:55,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:26:55,354 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:26:55,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:26:55,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:26:55,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:26:55,355 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:26:55,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:26:55,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:55,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:26:55,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:26:55,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:26:55,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:26:55,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:26:55,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:26:55,357 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:26:55,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:26:55,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:26:55,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:26:55,640 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:26:55,640 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:26:55,641 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c [2019-11-07 04:26:55,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00acf601b/6ec1ee92d5114455ac7fc2de2f0bace9/FLAG746159fc0 [2019-11-07 04:26:56,340 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:26:56,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c [2019-11-07 04:26:56,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00acf601b/6ec1ee92d5114455ac7fc2de2f0bace9/FLAG746159fc0 [2019-11-07 04:26:56,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00acf601b/6ec1ee92d5114455ac7fc2de2f0bace9 [2019-11-07 04:26:56,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:26:56,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:26:56,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:56,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:26:56,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:26:56,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:56" (1/1) ... [2019-11-07 04:26:56,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283825d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:56, skipping insertion in model container [2019-11-07 04:26:56,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:26:56" (1/1) ... [2019-11-07 04:26:56,589 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:26:56,745 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:26:57,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:26:57,453 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:26:57,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:26:57,713 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:26:57,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57 WrapperNode [2019-11-07 04:26:57,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:26:57,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:26:57,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:26:57,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:26:57,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (1/1) ... [2019-11-07 04:26:57,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (1/1) ... [2019-11-07 04:26:57,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (1/1) ... [2019-11-07 04:26:57,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (1/1) ... [2019-11-07 04:26:57,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (1/1) ... [2019-11-07 04:26:57,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (1/1) ... [2019-11-07 04:26:57,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (1/1) ... [2019-11-07 04:26:57,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:26:57,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:26:57,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:26:57,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:26:57,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:26:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:26:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:26:58,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:26:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:26:58,035 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:26:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:26:58,036 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:26:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:26:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:26:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:26:58,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:26:58,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:26:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:26:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:26:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:26:58,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:26:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:26:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:26:58,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:26:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:26:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:26:58,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:26:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:26:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:26:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:26:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:26:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:26:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:26:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:26:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:26:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:26:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:26:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:26:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:26:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:26:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:26:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:26:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:26:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:26:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:26:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:26:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:26:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:26:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:26:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:26:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:26:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:26:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:26:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:26:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:26:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:26:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:26:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:26:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:26:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:26:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:26:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:26:58,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:26:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:26:58,051 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:26:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:26:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:26:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:26:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:26:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:26:58,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:26:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:26:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:26:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:26:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:26:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:26:58,053 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-11-07 04:26:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:26:58,054 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:26:58,055 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:26:58,055 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:26:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:26:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:26:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:26:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:26:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:26:58,057 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 04:26:58,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:26:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:26:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:26:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:26:58,058 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:26:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:26:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:26:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:26:58,059 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:26:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:26:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:26:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:26:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:26:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:26:58,060 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:26:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:26:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:26:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:26:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:26:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:26:58,061 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:26:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 04:26:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:26:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:26:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:26:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:26:58,062 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:26:58,063 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:26:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:26:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:26:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:26:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:26:58,063 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:26:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:26:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:26:58,064 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:26:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:26:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:26:58,065 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:26:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:26:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:26:58,066 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:26:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:26:58,067 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:26:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:26:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:26:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:26:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:26:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:26:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:26:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:26:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:26:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:26:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:26:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:26:58,073 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:26:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 04:26:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:26:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:26:58,074 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:26:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:26:58,075 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:26:58,082 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:26:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:26:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:26:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:26:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:26:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:26:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:26:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:26:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:26:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:26:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:26:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:26:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:26:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:26:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:26:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:26:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:26:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:26:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:26:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:26:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:26:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:26:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:26:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:26:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:26:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:26:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:26:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:26:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:26:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:26:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:26:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:26:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:26:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:26:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:26:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:26:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:26:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:26:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:26:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:26:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:26:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:26:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:26:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:26:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:26:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:26:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:26:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:26:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:26:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:26:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:26:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:26:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:26:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:26:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:26:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:26:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:26:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:26:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:26:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:26:58,090 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:26:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:26:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:26:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:26:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:26:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:26:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 04:26:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-11-07 04:26:58,091 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:26:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:26:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-11-07 04:26:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-11-07 04:26:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:26:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:26:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:26:58,092 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:26:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:26:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:26:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:26:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:26:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:26:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:26:58,093 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:26:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:26:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:26:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:26:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:26:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:26:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:26:58,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:26:58,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:27:03,129 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:27:03,129 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:27:03,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:27:03 BoogieIcfgContainer [2019-11-07 04:27:03,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:27:03,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:27:03,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:27:03,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:27:03,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:26:56" (1/3) ... [2019-11-07 04:27:03,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c51bb22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:27:03, skipping insertion in model container [2019-11-07 04:27:03,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:26:57" (2/3) ... [2019-11-07 04:27:03,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c51bb22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:27:03, skipping insertion in model container [2019-11-07 04:27:03,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:27:03" (3/3) ... [2019-11-07 04:27:03,139 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product15.cil.c [2019-11-07 04:27:03,150 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:27:03,159 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:27:03,171 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:27:03,201 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:27:03,202 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:27:03,202 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:27:03,202 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:27:03,202 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:27:03,202 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:27:03,202 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:27:03,202 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:27:03,231 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states. [2019-11-07 04:27:03,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-11-07 04:27:03,247 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:03,249 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:03,251 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:03,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:03,259 INFO L82 PathProgramCache]: Analyzing trace with hash 322371803, now seen corresponding path program 1 times [2019-11-07 04:27:03,269 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:03,270 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955409379] [2019-11-07 04:27:03,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:03,934 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955409379] [2019-11-07 04:27:03,934 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:03,935 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:27:03,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337041051] [2019-11-07 04:27:03,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:27:03,942 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:03,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:27:03,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:27:03,961 INFO L87 Difference]: Start difference. First operand 344 states. Second operand 2 states. [2019-11-07 04:27:04,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:04,038 INFO L93 Difference]: Finished difference Result 454 states and 535 transitions. [2019-11-07 04:27:04,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:27:04,040 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 114 [2019-11-07 04:27:04,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:04,075 INFO L225 Difference]: With dead ends: 454 [2019-11-07 04:27:04,076 INFO L226 Difference]: Without dead ends: 302 [2019-11-07 04:27:04,083 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:27:04,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-11-07 04:27:04,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2019-11-07 04:27:04,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-11-07 04:27:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 356 transitions. [2019-11-07 04:27:04,212 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 356 transitions. Word has length 114 [2019-11-07 04:27:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:04,214 INFO L462 AbstractCegarLoop]: Abstraction has 302 states and 356 transitions. [2019-11-07 04:27:04,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:27:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 356 transitions. [2019-11-07 04:27:04,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-11-07 04:27:04,220 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:04,220 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:04,220 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:04,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:04,221 INFO L82 PathProgramCache]: Analyzing trace with hash -2050185194, now seen corresponding path program 1 times [2019-11-07 04:27:04,221 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:04,222 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212297748] [2019-11-07 04:27:04,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:04,438 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:04,439 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212297748] [2019-11-07 04:27:04,439 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:04,439 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:04,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505358178] [2019-11-07 04:27:04,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:04,445 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:04,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:04,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:04,445 INFO L87 Difference]: Start difference. First operand 302 states and 356 transitions. Second operand 3 states. [2019-11-07 04:27:04,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:04,519 INFO L93 Difference]: Finished difference Result 439 states and 507 transitions. [2019-11-07 04:27:04,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:04,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-11-07 04:27:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:04,525 INFO L225 Difference]: With dead ends: 439 [2019-11-07 04:27:04,525 INFO L226 Difference]: Without dead ends: 304 [2019-11-07 04:27:04,530 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:04,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-11-07 04:27:04,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2019-11-07 04:27:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-11-07 04:27:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 358 transitions. [2019-11-07 04:27:04,570 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 358 transitions. Word has length 115 [2019-11-07 04:27:04,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:04,572 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 358 transitions. [2019-11-07 04:27:04,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:04,572 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 358 transitions. [2019-11-07 04:27:04,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-11-07 04:27:04,578 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:04,579 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:04,580 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:04,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:04,580 INFO L82 PathProgramCache]: Analyzing trace with hash 372523246, now seen corresponding path program 1 times [2019-11-07 04:27:04,580 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:04,581 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166909731] [2019-11-07 04:27:04,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:04,811 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166909731] [2019-11-07 04:27:04,811 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:04,811 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:04,812 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664085466] [2019-11-07 04:27:04,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:04,814 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:04,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:04,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:04,815 INFO L87 Difference]: Start difference. First operand 304 states and 358 transitions. Second operand 3 states. [2019-11-07 04:27:04,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:04,864 INFO L93 Difference]: Finished difference Result 590 states and 723 transitions. [2019-11-07 04:27:04,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:04,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-11-07 04:27:04,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:04,869 INFO L225 Difference]: With dead ends: 590 [2019-11-07 04:27:04,869 INFO L226 Difference]: Without dead ends: 344 [2019-11-07 04:27:04,874 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:04,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2019-11-07 04:27:04,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 343. [2019-11-07 04:27:04,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-11-07 04:27:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 426 transitions. [2019-11-07 04:27:04,899 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 426 transitions. Word has length 124 [2019-11-07 04:27:04,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:04,899 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 426 transitions. [2019-11-07 04:27:04,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 426 transitions. [2019-11-07 04:27:04,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-07 04:27:04,903 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:04,903 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:04,904 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:04,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:04,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1482738148, now seen corresponding path program 1 times [2019-11-07 04:27:04,905 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:04,905 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784878760] [2019-11-07 04:27:04,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:05,097 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784878760] [2019-11-07 04:27:05,098 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:05,098 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:05,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572236865] [2019-11-07 04:27:05,099 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:05,099 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:05,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:05,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:05,100 INFO L87 Difference]: Start difference. First operand 343 states and 426 transitions. Second operand 3 states. [2019-11-07 04:27:05,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:05,145 INFO L93 Difference]: Finished difference Result 704 states and 922 transitions. [2019-11-07 04:27:05,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:05,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-11-07 04:27:05,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:05,152 INFO L225 Difference]: With dead ends: 704 [2019-11-07 04:27:05,153 INFO L226 Difference]: Without dead ends: 419 [2019-11-07 04:27:05,154 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:05,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2019-11-07 04:27:05,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2019-11-07 04:27:05,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-11-07 04:27:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 556 transitions. [2019-11-07 04:27:05,176 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 556 transitions. Word has length 125 [2019-11-07 04:27:05,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:05,178 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 556 transitions. [2019-11-07 04:27:05,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:05,178 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 556 transitions. [2019-11-07 04:27:05,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-11-07 04:27:05,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:05,184 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:05,184 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:05,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:05,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1205503246, now seen corresponding path program 1 times [2019-11-07 04:27:05,185 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:05,186 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736913751] [2019-11-07 04:27:05,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:27:05,343 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736913751] [2019-11-07 04:27:05,343 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:05,343 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:05,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407433545] [2019-11-07 04:27:05,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:05,345 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:05,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:05,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:05,346 INFO L87 Difference]: Start difference. First operand 418 states and 556 transitions. Second operand 3 states. [2019-11-07 04:27:05,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:05,379 INFO L93 Difference]: Finished difference Result 923 states and 1302 transitions. [2019-11-07 04:27:05,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:05,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-11-07 04:27:05,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:05,388 INFO L225 Difference]: With dead ends: 923 [2019-11-07 04:27:05,389 INFO L226 Difference]: Without dead ends: 563 [2019-11-07 04:27:05,391 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2019-11-07 04:27:05,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 562. [2019-11-07 04:27:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-11-07 04:27:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 804 transitions. [2019-11-07 04:27:05,442 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 804 transitions. Word has length 126 [2019-11-07 04:27:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:05,443 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 804 transitions. [2019-11-07 04:27:05,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 804 transitions. [2019-11-07 04:27:05,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-11-07 04:27:05,448 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:05,449 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:05,449 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:05,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:05,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1234299425, now seen corresponding path program 1 times [2019-11-07 04:27:05,450 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:05,450 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561429371] [2019-11-07 04:27:05,450 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-11-07 04:27:05,712 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561429371] [2019-11-07 04:27:05,713 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:05,714 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:27:05,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425127986] [2019-11-07 04:27:05,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:27:05,716 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:05,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:27:05,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:05,717 INFO L87 Difference]: Start difference. First operand 562 states and 804 transitions. Second operand 3 states. [2019-11-07 04:27:05,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:05,761 INFO L93 Difference]: Finished difference Result 730 states and 993 transitions. [2019-11-07 04:27:05,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:27:05,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-11-07 04:27:05,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:05,767 INFO L225 Difference]: With dead ends: 730 [2019-11-07 04:27:05,767 INFO L226 Difference]: Without dead ends: 596 [2019-11-07 04:27:05,768 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:27:05,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-11-07 04:27:05,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2019-11-07 04:27:05,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-11-07 04:27:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 836 transitions. [2019-11-07 04:27:05,802 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 836 transitions. Word has length 128 [2019-11-07 04:27:05,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:05,804 INFO L462 AbstractCegarLoop]: Abstraction has 596 states and 836 transitions. [2019-11-07 04:27:05,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:27:05,804 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 836 transitions. [2019-11-07 04:27:05,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-11-07 04:27:05,809 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:05,810 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:05,810 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:05,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:05,811 INFO L82 PathProgramCache]: Analyzing trace with hash -168053957, now seen corresponding path program 1 times [2019-11-07 04:27:05,811 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:05,811 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067333421] [2019-11-07 04:27:05,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:05,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 04:27:06,192 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067333421] [2019-11-07 04:27:06,193 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:27:06,193 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 04:27:06,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749561004] [2019-11-07 04:27:06,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 04:27:06,194 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:27:06,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 04:27:06,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:27:06,195 INFO L87 Difference]: Start difference. First operand 596 states and 836 transitions. Second operand 11 states. [2019-11-07 04:27:08,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:27:08,714 INFO L93 Difference]: Finished difference Result 670 states and 906 transitions. [2019-11-07 04:27:08,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:27:08,715 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 213 [2019-11-07 04:27:08,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:27:08,720 INFO L225 Difference]: With dead ends: 670 [2019-11-07 04:27:08,720 INFO L226 Difference]: Without dead ends: 602 [2019-11-07 04:27:08,721 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:27:08,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-11-07 04:27:08,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-11-07 04:27:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-11-07 04:27:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 837 transitions. [2019-11-07 04:27:08,750 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 837 transitions. Word has length 213 [2019-11-07 04:27:08,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:27:08,751 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 837 transitions. [2019-11-07 04:27:08,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 04:27:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 837 transitions. [2019-11-07 04:27:08,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2019-11-07 04:27:08,756 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:27:08,757 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:27:08,757 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:27:08,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:27:08,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1650230684, now seen corresponding path program 1 times [2019-11-07 04:27:08,758 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:27:08,758 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483894269] [2019-11-07 04:27:08,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:27:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-11-07 04:27:09,482 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483894269] [2019-11-07 04:27:09,482 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763124855] [2019-11-07 04:27:09,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:27:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:27:10,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:27:10,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:27:10,408 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-11-07 04:27:10,409 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:27:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-07 04:27:11,125 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1982072855] [2019-11-07 04:27:11,157 INFO L159 IcfgInterpreter]: Started Sifa with 186 locations of interest [2019-11-07 04:27:11,157 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:27:11,164 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:27:11,171 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:27:11,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs