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_spec6_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:44,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:44,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:44,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:44,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:44,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:44,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:44,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:44,025 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:44,026 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:44,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:44,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:44,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:44,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:44,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:44,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:44,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:44,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:44,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:44,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:44,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:44,039 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:44,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:44,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:44,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:44,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:44,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:44,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:44,045 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:44,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:44,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:44,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:44,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:44,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:44,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:44,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:44,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:44,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:44,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:44,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:44,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:44,056 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 03:15:44,082 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:44,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:44,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:44,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:44,084 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:44,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:44,085 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:44,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:44,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:44,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:44,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:44,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:44,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:44,087 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:44,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:44,087 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:44,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:44,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:44,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:44,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:44,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:44,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:44,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:44,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:44,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:44,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:44,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:44,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:44,090 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 03:15:44,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:44,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:44,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:44,383 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:44,384 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:44,384 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-15 03:15:44,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e5928d2/ab1a566e91f54663ae73152a5ecf6417/FLAGacea6df95 [2019-10-15 03:15:45,076 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:45,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product20.cil.c [2019-10-15 03:15:45,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e5928d2/ab1a566e91f54663ae73152a5ecf6417/FLAGacea6df95 [2019-10-15 03:15:45,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e5928d2/ab1a566e91f54663ae73152a5ecf6417 [2019-10-15 03:15:45,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:45,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:45,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:45,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:45,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:45,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29914bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:45, skipping insertion in model container [2019-10-15 03:15:45,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:45" (1/1) ... [2019-10-15 03:15:45,351 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:45,431 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:46,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:46,133 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:46,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:46,419 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:46,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46 WrapperNode [2019-10-15 03:15:46,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:46,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:46,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:46,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:46,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (1/1) ... [2019-10-15 03:15:46,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:46,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:46,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:46,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:46,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (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 03:15:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:46,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:46,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:46,715 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:46,715 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:46,715 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:46,717 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:46,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:46,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:46,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:46,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:46,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:46,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:46,720 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:46,720 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:15:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 03:15:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-15 03:15:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:15:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 03:15:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:15:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 03:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:46,765 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:15:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 03:15:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:15:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-15 03:15:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:46,766 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:46,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:51,092 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:51,092 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:51,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:51 BoogieIcfgContainer [2019-10-15 03:15:51,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:51,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:51,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:51,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:51,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:45" (1/3) ... [2019-10-15 03:15:51,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375a0552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:51, skipping insertion in model container [2019-10-15 03:15:51,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:46" (2/3) ... [2019-10-15 03:15:51,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375a0552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:51, skipping insertion in model container [2019-10-15 03:15:51,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:51" (3/3) ... [2019-10-15 03:15:51,103 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product20.cil.c [2019-10-15 03:15:51,112 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:51,123 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:51,133 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:51,166 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:51,167 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:51,167 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:51,167 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:51,167 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:51,167 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:51,167 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:51,167 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states. [2019-10-15 03:15:51,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:15:51,210 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:51,212 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:51,214 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:51,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:51,219 INFO L82 PathProgramCache]: Analyzing trace with hash -319733925, now seen corresponding path program 1 times [2019-10-15 03:15:51,228 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:51,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889777829] [2019-10-15 03:15:51,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:51,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:51,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:51,875 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 03:15:51,876 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889777829] [2019-10-15 03:15:51,877 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:51,877 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:51,877 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234266569] [2019-10-15 03:15:51,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:51,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:51,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:51,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:51,899 INFO L87 Difference]: Start difference. First operand 393 states. Second operand 2 states. [2019-10-15 03:15:51,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:51,971 INFO L93 Difference]: Finished difference Result 526 states and 630 transitions. [2019-10-15 03:15:51,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:51,973 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 143 [2019-10-15 03:15:51,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:51,990 INFO L225 Difference]: With dead ends: 526 [2019-10-15 03:15:51,991 INFO L226 Difference]: Without dead ends: 345 [2019-10-15 03:15:51,996 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 03:15:52,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2019-10-15 03:15:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2019-10-15 03:15:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2019-10-15 03:15:52,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 409 transitions. [2019-10-15 03:15:52,079 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 409 transitions. Word has length 143 [2019-10-15 03:15:52,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:52,081 INFO L462 AbstractCegarLoop]: Abstraction has 345 states and 409 transitions. [2019-10-15 03:15:52,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:52,081 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 409 transitions. [2019-10-15 03:15:52,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-15 03:15:52,088 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:52,088 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:52,088 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:52,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:52,089 INFO L82 PathProgramCache]: Analyzing trace with hash -2053047464, now seen corresponding path program 1 times [2019-10-15 03:15:52,089 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:52,089 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154934970] [2019-10-15 03:15:52,089 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,090 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:52,372 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 03:15:52,372 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154934970] [2019-10-15 03:15:52,372 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:52,373 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:52,373 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85819756] [2019-10-15 03:15:52,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:52,378 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:52,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:52,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:52,378 INFO L87 Difference]: Start difference. First operand 345 states and 409 transitions. Second operand 3 states. [2019-10-15 03:15:52,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:52,442 INFO L93 Difference]: Finished difference Result 511 states and 598 transitions. [2019-10-15 03:15:52,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:52,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2019-10-15 03:15:52,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:52,449 INFO L225 Difference]: With dead ends: 511 [2019-10-15 03:15:52,449 INFO L226 Difference]: Without dead ends: 347 [2019-10-15 03:15:52,451 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 03:15:52,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-10-15 03:15:52,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-10-15 03:15:52,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-10-15 03:15:52,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 411 transitions. [2019-10-15 03:15:52,484 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 411 transitions. Word has length 144 [2019-10-15 03:15:52,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:52,488 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 411 transitions. [2019-10-15 03:15:52,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:52,488 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 411 transitions. [2019-10-15 03:15:52,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-15 03:15:52,494 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:52,494 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:52,494 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:52,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:52,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1769939696, now seen corresponding path program 1 times [2019-10-15 03:15:52,495 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:52,495 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104424830] [2019-10-15 03:15:52,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,496 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:52,758 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 03:15:52,759 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104424830] [2019-10-15 03:15:52,759 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:52,759 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:52,759 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091779091] [2019-10-15 03:15:52,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:52,761 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:52,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:52,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:52,762 INFO L87 Difference]: Start difference. First operand 347 states and 411 transitions. Second operand 3 states. [2019-10-15 03:15:52,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:52,819 INFO L93 Difference]: Finished difference Result 678 states and 832 transitions. [2019-10-15 03:15:52,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:52,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-15 03:15:52,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:52,827 INFO L225 Difference]: With dead ends: 678 [2019-10-15 03:15:52,828 INFO L226 Difference]: Without dead ends: 389 [2019-10-15 03:15:52,831 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 03:15:52,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-10-15 03:15:52,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 388. [2019-10-15 03:15:52,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2019-10-15 03:15:52,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 482 transitions. [2019-10-15 03:15:52,872 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 482 transitions. Word has length 153 [2019-10-15 03:15:52,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:52,873 INFO L462 AbstractCegarLoop]: Abstraction has 388 states and 482 transitions. [2019-10-15 03:15:52,873 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:52,873 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 482 transitions. [2019-10-15 03:15:52,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-15 03:15:52,881 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:52,881 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:52,882 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:52,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:52,882 INFO L82 PathProgramCache]: Analyzing trace with hash -788518016, now seen corresponding path program 1 times [2019-10-15 03:15:52,884 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:52,884 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124050796] [2019-10-15 03:15:52,884 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,884 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:52,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:53,115 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 03:15:53,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124050796] [2019-10-15 03:15:53,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:53,117 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:53,117 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389177605] [2019-10-15 03:15:53,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:53,122 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:53,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:53,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:53,122 INFO L87 Difference]: Start difference. First operand 388 states and 482 transitions. Second operand 3 states. [2019-10-15 03:15:53,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:53,169 INFO L93 Difference]: Finished difference Result 798 states and 1040 transitions. [2019-10-15 03:15:53,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:53,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 154 [2019-10-15 03:15:53,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:53,179 INFO L225 Difference]: With dead ends: 798 [2019-10-15 03:15:53,179 INFO L226 Difference]: Without dead ends: 468 [2019-10-15 03:15:53,181 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 03:15:53,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-15 03:15:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 467. [2019-10-15 03:15:53,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-15 03:15:53,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 618 transitions. [2019-10-15 03:15:53,235 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 618 transitions. Word has length 154 [2019-10-15 03:15:53,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:53,237 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 618 transitions. [2019-10-15 03:15:53,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:53,237 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 618 transitions. [2019-10-15 03:15:53,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-15 03:15:53,240 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:53,241 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:53,241 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:53,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:53,241 INFO L82 PathProgramCache]: Analyzing trace with hash 657046625, now seen corresponding path program 1 times [2019-10-15 03:15:53,242 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:53,242 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786271343] [2019-10-15 03:15:53,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:53,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:53,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:53,883 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-10-15 03:15:54,034 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 03:15:54,034 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786271343] [2019-10-15 03:15:54,034 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:54,034 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-15 03:15:54,035 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028071302] [2019-10-15 03:15:54,035 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-15 03:15:54,036 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:54,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-15 03:15:54,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-15 03:15:54,037 INFO L87 Difference]: Start difference. First operand 467 states and 618 transitions. Second operand 24 states. [2019-10-15 03:16:01,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:01,410 INFO L93 Difference]: Finished difference Result 1049 states and 1338 transitions. [2019-10-15 03:16:01,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-10-15 03:16:01,410 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 157 [2019-10-15 03:16:01,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:01,419 INFO L225 Difference]: With dead ends: 1049 [2019-10-15 03:16:01,420 INFO L226 Difference]: Without dead ends: 893 [2019-10-15 03:16:01,423 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=272, Invalid=2484, Unknown=0, NotChecked=0, Total=2756 [2019-10-15 03:16:01,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2019-10-15 03:16:01,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 880. [2019-10-15 03:16:01,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2019-10-15 03:16:01,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1114 transitions. [2019-10-15 03:16:01,488 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1114 transitions. Word has length 157 [2019-10-15 03:16:01,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:01,492 INFO L462 AbstractCegarLoop]: Abstraction has 880 states and 1114 transitions. [2019-10-15 03:16:01,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-15 03:16:01,492 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1114 transitions. [2019-10-15 03:16:01,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-15 03:16:01,495 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:01,496 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:16:01,496 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:01,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:01,497 INFO L82 PathProgramCache]: Analyzing trace with hash 187493591, now seen corresponding path program 1 times [2019-10-15 03:16:01,497 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:01,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989631225] [2019-10-15 03:16:01,497 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:01,497 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:01,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:01,984 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 03:16:01,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989631225] [2019-10-15 03:16:01,985 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:01,985 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:16:01,985 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200705747] [2019-10-15 03:16:01,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:16:01,986 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:01,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:16:01,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:16:01,987 INFO L87 Difference]: Start difference. First operand 880 states and 1114 transitions. Second operand 14 states. [2019-10-15 03:16:05,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:05,593 INFO L93 Difference]: Finished difference Result 1914 states and 2402 transitions. [2019-10-15 03:16:05,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:16:05,594 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 163 [2019-10-15 03:16:05,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:05,605 INFO L225 Difference]: With dead ends: 1914 [2019-10-15 03:16:05,605 INFO L226 Difference]: Without dead ends: 1623 [2019-10-15 03:16:05,608 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:16:05,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1623 states. [2019-10-15 03:16:05,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1623 to 1570. [2019-10-15 03:16:05,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1570 states. [2019-10-15 03:16:05,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 1965 transitions. [2019-10-15 03:16:05,705 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 1965 transitions. Word has length 163 [2019-10-15 03:16:05,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:05,706 INFO L462 AbstractCegarLoop]: Abstraction has 1570 states and 1965 transitions. [2019-10-15 03:16:05,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:16:05,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 1965 transitions. [2019-10-15 03:16:05,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 03:16:05,711 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:05,711 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:16:05,711 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:05,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:05,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1447020868, now seen corresponding path program 1 times [2019-10-15 03:16:05,712 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:05,712 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521873830] [2019-10-15 03:16:05,712 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,713 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:05,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:05,878 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 03:16:05,878 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521873830] [2019-10-15 03:16:05,879 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:05,879 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:05,879 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249682883] [2019-10-15 03:16:05,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:05,880 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:05,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:05,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:05,881 INFO L87 Difference]: Start difference. First operand 1570 states and 1965 transitions. Second operand 3 states. [2019-10-15 03:16:05,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:05,963 INFO L93 Difference]: Finished difference Result 3295 states and 4239 transitions. [2019-10-15 03:16:05,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:05,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-15 03:16:05,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:05,975 INFO L225 Difference]: With dead ends: 3295 [2019-10-15 03:16:05,975 INFO L226 Difference]: Without dead ends: 1783 [2019-10-15 03:16:05,980 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 03:16:05,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2019-10-15 03:16:06,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1781. [2019-10-15 03:16:06,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2019-10-15 03:16:06,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2329 transitions. [2019-10-15 03:16:06,076 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2329 transitions. Word has length 179 [2019-10-15 03:16:06,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:06,077 INFO L462 AbstractCegarLoop]: Abstraction has 1781 states and 2329 transitions. [2019-10-15 03:16:06,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2329 transitions. [2019-10-15 03:16:06,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 03:16:06,082 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:06,083 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:16:06,083 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:06,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:06,083 INFO L82 PathProgramCache]: Analyzing trace with hash 497917420, now seen corresponding path program 1 times [2019-10-15 03:16:06,084 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:06,084 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708631755] [2019-10-15 03:16:06,084 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:06,084 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:06,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:06,384 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 03:16:06,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708631755] [2019-10-15 03:16:06,384 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:06,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:06,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005263823] [2019-10-15 03:16:06,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:06,387 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:06,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:06,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:06,390 INFO L87 Difference]: Start difference. First operand 1781 states and 2329 transitions. Second operand 12 states. [2019-10-15 03:16:10,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:10,498 INFO L93 Difference]: Finished difference Result 3756 states and 5075 transitions. [2019-10-15 03:16:10,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:16:10,498 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 180 [2019-10-15 03:16:10,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:10,514 INFO L225 Difference]: With dead ends: 3756 [2019-10-15 03:16:10,515 INFO L226 Difference]: Without dead ends: 2778 [2019-10-15 03:16:10,519 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:10,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2019-10-15 03:16:10,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2195. [2019-10-15 03:16:10,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2195 states. [2019-10-15 03:16:10,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3046 transitions. [2019-10-15 03:16:10,691 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3046 transitions. Word has length 180 [2019-10-15 03:16:10,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:10,692 INFO L462 AbstractCegarLoop]: Abstraction has 2195 states and 3046 transitions. [2019-10-15 03:16:10,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:16:10,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3046 transitions. [2019-10-15 03:16:10,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-15 03:16:10,702 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:10,702 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:16:10,703 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:10,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:10,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1271157435, now seen corresponding path program 1 times [2019-10-15 03:16:10,703 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:10,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725564415] [2019-10-15 03:16:10,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:10,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:10,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:10,884 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 03:16:10,886 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725564415] [2019-10-15 03:16:10,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:10,886 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:16:10,887 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21351182] [2019-10-15 03:16:10,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:16:10,888 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:10,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:16:10,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:16:10,888 INFO L87 Difference]: Start difference. First operand 2195 states and 3046 transitions. Second operand 3 states. [2019-10-15 03:16:11,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:11,010 INFO L93 Difference]: Finished difference Result 4621 states and 6560 transitions. [2019-10-15 03:16:11,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:16:11,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-10-15 03:16:11,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:11,028 INFO L225 Difference]: With dead ends: 4621 [2019-10-15 03:16:11,029 INFO L226 Difference]: Without dead ends: 2488 [2019-10-15 03:16:11,040 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 03:16:11,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2019-10-15 03:16:11,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2487. [2019-10-15 03:16:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2487 states. [2019-10-15 03:16:11,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3558 transitions. [2019-10-15 03:16:11,192 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3558 transitions. Word has length 181 [2019-10-15 03:16:11,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:11,193 INFO L462 AbstractCegarLoop]: Abstraction has 2487 states and 3558 transitions. [2019-10-15 03:16:11,193 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:16:11,193 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3558 transitions. [2019-10-15 03:16:11,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 03:16:11,280 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:11,280 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:16:11,281 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:11,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:11,282 INFO L82 PathProgramCache]: Analyzing trace with hash -247264241, now seen corresponding path program 1 times [2019-10-15 03:16:11,282 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:11,282 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868148362] [2019-10-15 03:16:11,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:11,282 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:11,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:11,530 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 03:16:11,531 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868148362] [2019-10-15 03:16:11,531 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:16:11,531 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:16:11,532 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758215665] [2019-10-15 03:16:11,533 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:16:11,533 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:16:11,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:16:11,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:16:11,534 INFO L87 Difference]: Start difference. First operand 2487 states and 3558 transitions. Second operand 12 states. [2019-10-15 03:16:15,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:16:15,556 INFO L93 Difference]: Finished difference Result 4593 states and 6527 transitions. [2019-10-15 03:16:15,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:16:15,557 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 183 [2019-10-15 03:16:15,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:16:15,574 INFO L225 Difference]: With dead ends: 4593 [2019-10-15 03:16:15,574 INFO L226 Difference]: Without dead ends: 2913 [2019-10-15 03:16:15,586 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:16:15,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2019-10-15 03:16:15,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2330. [2019-10-15 03:16:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2330 states. [2019-10-15 03:16:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2330 states to 2330 states and 3271 transitions. [2019-10-15 03:16:15,737 INFO L78 Accepts]: Start accepts. Automaton has 2330 states and 3271 transitions. Word has length 183 [2019-10-15 03:16:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:16:15,737 INFO L462 AbstractCegarLoop]: Abstraction has 2330 states and 3271 transitions. [2019-10-15 03:16:15,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:16:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2330 states and 3271 transitions. [2019-10-15 03:16:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-15 03:16:15,746 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:16:15,747 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:16:15,747 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:16:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:16:15,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1365573407, now seen corresponding path program 1 times [2019-10-15 03:16:15,748 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:16:15,748 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939949105] [2019-10-15 03:16:15,748 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:15,748 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:16:15,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:16:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:16,158 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:16,158 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939949105] [2019-10-15 03:16:16,159 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081197436] [2019-10-15 03:16:16,159 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 03:16:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:16:16,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:16:16,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:16:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:16,965 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:16:17,232 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:16:17,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1158984571] [2019-10-15 03:16:17,260 INFO L162 IcfgInterpreter]: Started Sifa with 171 locations of interest [2019-10-15 03:16:17,260 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:16:17,266 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:16:17,273 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:16:17,273 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs