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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:15:22,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:15:22,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:15:22,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:15:22,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:15:22,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:15:22,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:15:22,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:15:22,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:15:22,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:15:22,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:15:22,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:15:22,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:15:22,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:15:22,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:15:22,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:15:22,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:15:22,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:15:22,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:15:22,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:15:22,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:15:22,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:15:22,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:15:22,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:15:22,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:15:22,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:15:22,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:15:22,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:15:22,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:15:22,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:15:22,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:15:22,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:15:22,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:15:22,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:15:22,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:15:22,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:15:22,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:15:22,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:15:22,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:15:22,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:15:22,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:15:22,268 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 03:15:22,290 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:15:22,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:15:22,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:15:22,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:15:22,292 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:15:22,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:15:22,293 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:15:22,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:15:22,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:15:22,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:15:22,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:15:22,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:15:22,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:15:22,294 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:15:22,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:15:22,295 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:15:22,295 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:15:22,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:15:22,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:15:22,296 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:15:22,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:15:22,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:15:22,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:15:22,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:15:22,297 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:15:22,297 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:15:22,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:15:22,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:15:22,297 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 03:15:22,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:15:22,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:15:22,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:15:22,589 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:15:22,589 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:15:22,590 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product12.cil.c [2019-10-15 03:15:22,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87354ddb1/ce70fa02e6764b6b8d6d0b0099584811/FLAG77614e489 [2019-10-15 03:15:23,256 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:15:23,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product12.cil.c [2019-10-15 03:15:23,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87354ddb1/ce70fa02e6764b6b8d6d0b0099584811/FLAG77614e489 [2019-10-15 03:15:23,477 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87354ddb1/ce70fa02e6764b6b8d6d0b0099584811 [2019-10-15 03:15:23,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:15:23,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:15:23,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:23,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:15:23,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:15:23,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:23" (1/1) ... [2019-10-15 03:15:23,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7492c7de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:23, skipping insertion in model container [2019-10-15 03:15:23,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:15:23" (1/1) ... [2019-10-15 03:15:23,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:15:23,578 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:15:24,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:24,337 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:15:24,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:15:24,529 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:15:24,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24 WrapperNode [2019-10-15 03:15:24,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:15:24,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:15:24,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:15:24,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:15:24,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (1/1) ... [2019-10-15 03:15:24,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (1/1) ... [2019-10-15 03:15:24,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (1/1) ... [2019-10-15 03:15:24,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (1/1) ... [2019-10-15 03:15:24,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (1/1) ... [2019-10-15 03:15:24,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (1/1) ... [2019-10-15 03:15:24,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (1/1) ... [2019-10-15 03:15:24,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:15:24,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:15:24,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:15:24,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:15:24,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (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 03:15:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:15:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:15:24,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:15:24,795 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:15:24,796 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:15:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:15:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:15:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:15:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:15:24,797 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:15:24,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:15:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:15:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:24,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:24,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:15:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:15:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:15:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:15:24,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:15:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:15:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:15:24,803 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:15:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:15:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:15:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:15:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:15:24,804 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:15:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:15:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:15:24,805 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:15:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:15:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:15:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:15:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:15:24,806 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:15:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:15:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:15:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:15:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:15:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:15:24,807 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:15:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:15:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:15:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:15:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:15:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:15:24,808 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:15:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:15:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:15:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:15:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:15:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:15:24,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:15:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:15:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:15:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:15:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:15:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:15:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:15:24,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:15:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:15:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:15:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:15:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:15:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:15:24,812 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:15:24,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:15:24,813 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:15:24,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:15:24,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:15:24,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:15:24,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:15:24,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:15:24,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:15:24,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:15:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:15:24,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:15:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:15:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:15:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:15:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:15:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:15:24,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:15:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:15:24,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:15:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:15:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:15:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:15:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:15:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:24,819 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:15:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:15:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:15:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:15:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:15:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:15:24,820 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:15:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:15:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:15:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:24,821 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:15:24,822 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:15:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:15:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:15:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:15:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:15:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:15:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:15:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:15:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:15:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:15:24,823 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:15:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:15:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:15:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:15:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:15:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:15:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:15:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:15:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:15:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:15:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:15:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:15:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:15:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:15:24,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:15:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:15:24,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:15:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:15:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:15:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:15:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:15:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:15:24,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:15:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:15:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:15:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:15:24,834 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:15:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:15:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:15:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:15:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:15:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:15:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:15:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:15:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:15:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:15:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:15:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:15:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:15:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:15:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:15:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:15:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:15:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:15:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:15:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:15:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:15:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:15:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:15:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:15:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:15:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:15:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:15:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:15:24,847 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:15:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:15:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:15:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:15:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:15:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:15:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:15:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:15:24,848 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:15:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:15:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:15:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:15:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:15:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:15:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:15:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:15:24,849 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:15:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:15:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:15:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:15:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:15:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:15:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:15:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:15:24,850 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:15:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:15:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:15:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:15:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:15:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:15:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:15:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:15:24,851 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:15:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:15:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:15:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:15:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:15:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:15:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:15:24,852 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:15:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:15:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:15:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:15:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 03:15:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:15:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:15:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 03:15:24,853 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:15:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:15:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:15:24,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:15:28,775 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:15:28,775 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:15:28,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:28 BoogieIcfgContainer [2019-10-15 03:15:28,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:15:28,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:15:28,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:15:28,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:15:28,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:15:23" (1/3) ... [2019-10-15 03:15:28,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a416b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:28, skipping insertion in model container [2019-10-15 03:15:28,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:15:24" (2/3) ... [2019-10-15 03:15:28,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a416b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:15:28, skipping insertion in model container [2019-10-15 03:15:28,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:15:28" (3/3) ... [2019-10-15 03:15:28,785 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product12.cil.c [2019-10-15 03:15:28,796 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:15:28,807 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:15:28,818 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:15:28,851 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:15:28,852 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:15:28,852 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:15:28,852 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:15:28,852 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:15:28,852 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:15:28,852 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:15:28,852 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:15:28,921 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states. [2019-10-15 03:15:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:15:28,938 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:28,939 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] [2019-10-15 03:15:28,941 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:28,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:28,947 INFO L82 PathProgramCache]: Analyzing trace with hash -73053180, now seen corresponding path program 1 times [2019-10-15 03:15:28,956 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:28,957 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762722511] [2019-10-15 03:15:28,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:28,957 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:28,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:29,551 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 03:15:29,552 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762722511] [2019-10-15 03:15:29,553 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:29,553 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:15:29,553 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274434531] [2019-10-15 03:15:29,558 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:15:29,558 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:29,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:15:29,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:15:29,575 INFO L87 Difference]: Start difference. First operand 318 states. Second operand 2 states. [2019-10-15 03:15:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:29,630 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2019-10-15 03:15:29,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:15:29,632 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-10-15 03:15:29,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:29,648 INFO L225 Difference]: With dead ends: 413 [2019-10-15 03:15:29,649 INFO L226 Difference]: Without dead ends: 278 [2019-10-15 03:15:29,654 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 03:15:29,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-10-15 03:15:29,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-10-15 03:15:29,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-10-15 03:15:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 332 transitions. [2019-10-15 03:15:29,735 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 332 transitions. Word has length 136 [2019-10-15 03:15:29,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:29,738 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 332 transitions. [2019-10-15 03:15:29,738 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:15:29,738 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 332 transitions. [2019-10-15 03:15:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-10-15 03:15:29,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:29,754 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] [2019-10-15 03:15:29,754 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:29,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1729470688, now seen corresponding path program 1 times [2019-10-15 03:15:29,756 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:29,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681729660] [2019-10-15 03:15:29,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:29,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:29,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:30,019 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 03:15:30,019 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681729660] [2019-10-15 03:15:30,020 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:30,020 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:30,020 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765593828] [2019-10-15 03:15:30,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:30,023 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:30,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:30,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:30,023 INFO L87 Difference]: Start difference. First operand 278 states and 332 transitions. Second operand 3 states. [2019-10-15 03:15:30,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:30,076 INFO L93 Difference]: Finished difference Result 398 states and 466 transitions. [2019-10-15 03:15:30,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:30,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-10-15 03:15:30,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:30,087 INFO L225 Difference]: With dead ends: 398 [2019-10-15 03:15:30,088 INFO L226 Difference]: Without dead ends: 280 [2019-10-15 03:15:30,090 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 03:15:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-10-15 03:15:30,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-10-15 03:15:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-10-15 03:15:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 334 transitions. [2019-10-15 03:15:30,140 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 334 transitions. Word has length 137 [2019-10-15 03:15:30,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:30,141 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 334 transitions. [2019-10-15 03:15:30,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:30,141 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 334 transitions. [2019-10-15 03:15:30,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-15 03:15:30,149 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:30,149 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:30,150 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:30,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:30,151 INFO L82 PathProgramCache]: Analyzing trace with hash 729914396, now seen corresponding path program 1 times [2019-10-15 03:15:30,151 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:30,151 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660889068] [2019-10-15 03:15:30,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:30,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:30,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:30,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:30,427 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 03:15:30,427 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660889068] [2019-10-15 03:15:30,428 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:30,428 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:30,428 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149169879] [2019-10-15 03:15:30,429 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:30,429 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:30,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:30,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:30,430 INFO L87 Difference]: Start difference. First operand 280 states and 334 transitions. Second operand 3 states. [2019-10-15 03:15:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:30,478 INFO L93 Difference]: Finished difference Result 540 states and 672 transitions. [2019-10-15 03:15:30,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:30,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-15 03:15:30,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:30,484 INFO L225 Difference]: With dead ends: 540 [2019-10-15 03:15:30,485 INFO L226 Difference]: Without dead ends: 318 [2019-10-15 03:15:30,490 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 03:15:30,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-10-15 03:15:30,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 317. [2019-10-15 03:15:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2019-10-15 03:15:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 399 transitions. [2019-10-15 03:15:30,531 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 399 transitions. Word has length 142 [2019-10-15 03:15:30,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:30,532 INFO L462 AbstractCegarLoop]: Abstraction has 317 states and 399 transitions. [2019-10-15 03:15:30,532 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 399 transitions. [2019-10-15 03:15:30,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-15 03:15:30,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:30,541 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] [2019-10-15 03:15:30,541 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:30,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:30,541 INFO L82 PathProgramCache]: Analyzing trace with hash 134138767, now seen corresponding path program 1 times [2019-10-15 03:15:30,542 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:30,542 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250718357] [2019-10-15 03:15:30,542 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:30,543 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:30,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:31,066 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 03:15:31,066 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250718357] [2019-10-15 03:15:31,067 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:31,067 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-10-15 03:15:31,068 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513836179] [2019-10-15 03:15:31,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-15 03:15:31,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:31,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-15 03:15:31,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:15:31,072 INFO L87 Difference]: Start difference. First operand 317 states and 399 transitions. Second operand 22 states. [2019-10-15 03:15:35,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:35,580 INFO L93 Difference]: Finished difference Result 678 states and 822 transitions. [2019-10-15 03:15:35,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 03:15:35,581 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 143 [2019-10-15 03:15:35,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:35,587 INFO L225 Difference]: With dead ends: 678 [2019-10-15 03:15:35,588 INFO L226 Difference]: Without dead ends: 536 [2019-10-15 03:15:35,592 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=233, Invalid=1929, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 03:15:35,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-10-15 03:15:35,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 527. [2019-10-15 03:15:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2019-10-15 03:15:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 633 transitions. [2019-10-15 03:15:35,640 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 633 transitions. Word has length 143 [2019-10-15 03:15:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:35,644 INFO L462 AbstractCegarLoop]: Abstraction has 527 states and 633 transitions. [2019-10-15 03:15:35,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-15 03:15:35,644 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 633 transitions. [2019-10-15 03:15:35,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:15:35,649 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:35,650 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] [2019-10-15 03:15:35,650 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:35,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:35,650 INFO L82 PathProgramCache]: Analyzing trace with hash 750693262, now seen corresponding path program 1 times [2019-10-15 03:15:35,651 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:35,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352559607] [2019-10-15 03:15:35,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:35,652 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:35,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:36,010 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 03:15:36,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352559607] [2019-10-15 03:15:36,011 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:36,011 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:15:36,012 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875925294] [2019-10-15 03:15:36,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:15:36,012 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:36,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:15:36,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:15:36,013 INFO L87 Difference]: Start difference. First operand 527 states and 633 transitions. Second operand 12 states. [2019-10-15 03:15:37,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:37,728 INFO L93 Difference]: Finished difference Result 1101 states and 1297 transitions. [2019-10-15 03:15:37,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:15:37,728 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2019-10-15 03:15:37,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:37,737 INFO L225 Difference]: With dead ends: 1101 [2019-10-15 03:15:37,738 INFO L226 Difference]: Without dead ends: 847 [2019-10-15 03:15:37,739 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-10-15 03:15:37,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2019-10-15 03:15:37,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 777. [2019-10-15 03:15:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 777 states. [2019-10-15 03:15:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 923 transitions. [2019-10-15 03:15:37,821 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 923 transitions. Word has length 149 [2019-10-15 03:15:37,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:37,822 INFO L462 AbstractCegarLoop]: Abstraction has 777 states and 923 transitions. [2019-10-15 03:15:37,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:15:37,822 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 923 transitions. [2019-10-15 03:15:37,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-10-15 03:15:37,829 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:37,829 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] [2019-10-15 03:15:37,829 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:37,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:37,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1988398848, now seen corresponding path program 1 times [2019-10-15 03:15:37,830 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:37,830 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147578732] [2019-10-15 03:15:37,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:37,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:37,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:38,023 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 03:15:38,024 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147578732] [2019-10-15 03:15:38,024 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:38,025 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:38,025 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605813596] [2019-10-15 03:15:38,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:38,026 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:38,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:38,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:38,027 INFO L87 Difference]: Start difference. First operand 777 states and 923 transitions. Second operand 3 states. [2019-10-15 03:15:38,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:38,080 INFO L93 Difference]: Finished difference Result 1602 states and 1970 transitions. [2019-10-15 03:15:38,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:38,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-10-15 03:15:38,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:38,088 INFO L225 Difference]: With dead ends: 1602 [2019-10-15 03:15:38,088 INFO L226 Difference]: Without dead ends: 883 [2019-10-15 03:15:38,090 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 03:15:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2019-10-15 03:15:38,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 881. [2019-10-15 03:15:38,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2019-10-15 03:15:38,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1105 transitions. [2019-10-15 03:15:38,143 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1105 transitions. Word has length 171 [2019-10-15 03:15:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:38,145 INFO L462 AbstractCegarLoop]: Abstraction has 881 states and 1105 transitions. [2019-10-15 03:15:38,145 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:38,145 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1105 transitions. [2019-10-15 03:15:38,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 03:15:38,149 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:38,149 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:38,149 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:38,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:38,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1013973423, now seen corresponding path program 1 times [2019-10-15 03:15:38,150 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:38,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459545407] [2019-10-15 03:15:38,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:38,151 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:38,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 03:15:38,298 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459545407] [2019-10-15 03:15:38,298 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:38,298 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:38,299 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493787307] [2019-10-15 03:15:38,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:38,299 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:38,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:38,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:38,300 INFO L87 Difference]: Start difference. First operand 881 states and 1105 transitions. Second operand 3 states. [2019-10-15 03:15:38,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:38,384 INFO L93 Difference]: Finished difference Result 1899 states and 2492 transitions. [2019-10-15 03:15:38,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:38,384 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 177 [2019-10-15 03:15:38,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:38,391 INFO L225 Difference]: With dead ends: 1899 [2019-10-15 03:15:38,391 INFO L226 Difference]: Without dead ends: 1076 [2019-10-15 03:15:38,395 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 03:15:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2019-10-15 03:15:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1074. [2019-10-15 03:15:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1074 states. [2019-10-15 03:15:38,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1442 transitions. [2019-10-15 03:15:38,490 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1442 transitions. Word has length 177 [2019-10-15 03:15:38,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:38,492 INFO L462 AbstractCegarLoop]: Abstraction has 1074 states and 1442 transitions. [2019-10-15 03:15:38,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:38,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1442 transitions. [2019-10-15 03:15:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 03:15:38,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:38,502 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] [2019-10-15 03:15:38,503 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:38,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:38,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1997364994, now seen corresponding path program 1 times [2019-10-15 03:15:38,504 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:38,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161427393] [2019-10-15 03:15:38,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:38,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:38,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:38,877 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 03:15:38,877 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161427393] [2019-10-15 03:15:38,878 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:38,878 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:15:38,878 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95829780] [2019-10-15 03:15:38,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:15:38,879 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:38,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:15:38,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:15:38,880 INFO L87 Difference]: Start difference. First operand 1074 states and 1442 transitions. Second operand 12 states. [2019-10-15 03:15:41,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:41,699 INFO L93 Difference]: Finished difference Result 2463 states and 3428 transitions. [2019-10-15 03:15:41,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:15:41,703 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 173 [2019-10-15 03:15:41,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:41,713 INFO L225 Difference]: With dead ends: 2463 [2019-10-15 03:15:41,713 INFO L226 Difference]: Without dead ends: 1778 [2019-10-15 03:15:41,718 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2019-10-15 03:15:41,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2019-10-15 03:15:41,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1447. [2019-10-15 03:15:41,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1447 states. [2019-10-15 03:15:41,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2107 transitions. [2019-10-15 03:15:41,814 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2107 transitions. Word has length 173 [2019-10-15 03:15:41,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:41,815 INFO L462 AbstractCegarLoop]: Abstraction has 1447 states and 2107 transitions. [2019-10-15 03:15:41,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:15:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2107 transitions. [2019-10-15 03:15:41,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 03:15:41,822 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:41,823 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:41,823 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:41,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:41,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1905112598, now seen corresponding path program 1 times [2019-10-15 03:15:41,824 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:41,824 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090284688] [2019-10-15 03:15:41,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:41,825 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:41,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:41,954 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-15 03:15:41,954 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090284688] [2019-10-15 03:15:41,955 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:41,955 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:15:41,956 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116692587] [2019-10-15 03:15:41,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:15:41,957 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:41,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:15:41,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:15:41,957 INFO L87 Difference]: Start difference. First operand 1447 states and 2107 transitions. Second operand 3 states. [2019-10-15 03:15:42,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:42,033 INFO L93 Difference]: Finished difference Result 3101 states and 4646 transitions. [2019-10-15 03:15:42,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:15:42,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2019-10-15 03:15:42,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:42,044 INFO L225 Difference]: With dead ends: 3101 [2019-10-15 03:15:42,044 INFO L226 Difference]: Without dead ends: 1716 [2019-10-15 03:15:42,049 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 03:15:42,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2019-10-15 03:15:42,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1715. [2019-10-15 03:15:42,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1715 states. [2019-10-15 03:15:42,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2583 transitions. [2019-10-15 03:15:42,147 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2583 transitions. Word has length 179 [2019-10-15 03:15:42,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:42,148 INFO L462 AbstractCegarLoop]: Abstraction has 1715 states and 2583 transitions. [2019-10-15 03:15:42,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:15:42,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2583 transitions. [2019-10-15 03:15:42,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-15 03:15:42,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:42,157 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:15:42,157 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:42,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:42,157 INFO L82 PathProgramCache]: Analyzing trace with hash -463742468, now seen corresponding path program 1 times [2019-10-15 03:15:42,158 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:42,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083412372] [2019-10-15 03:15:42,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:42,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:42,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:15:42,564 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083412372] [2019-10-15 03:15:42,565 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:15:42,565 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:15:42,565 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442883424] [2019-10-15 03:15:42,567 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:15:42,568 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:15:42,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:15:42,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:15:42,569 INFO L87 Difference]: Start difference. First operand 1715 states and 2583 transitions. Second operand 12 states. [2019-10-15 03:15:46,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:15:46,259 INFO L93 Difference]: Finished difference Result 3223 states and 4774 transitions. [2019-10-15 03:15:46,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 03:15:46,260 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 182 [2019-10-15 03:15:46,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:15:46,271 INFO L225 Difference]: With dead ends: 3223 [2019-10-15 03:15:46,271 INFO L226 Difference]: Without dead ends: 1901 [2019-10-15 03:15:46,284 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 03:15:46,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1901 states. [2019-10-15 03:15:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1901 to 1570. [2019-10-15 03:15:46,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1570 states. [2019-10-15 03:15:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2314 transitions. [2019-10-15 03:15:46,410 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2314 transitions. Word has length 182 [2019-10-15 03:15:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:15:46,411 INFO L462 AbstractCegarLoop]: Abstraction has 1570 states and 2314 transitions. [2019-10-15 03:15:46,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:15:46,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2314 transitions. [2019-10-15 03:15:46,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 03:15:46,419 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:15:46,419 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] [2019-10-15 03:15:46,419 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:15:46,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:15:46,420 INFO L82 PathProgramCache]: Analyzing trace with hash 938999292, now seen corresponding path program 1 times [2019-10-15 03:15:46,420 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:15:46,420 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009209673] [2019-10-15 03:15:46,420 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:46,420 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:15:46,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:15:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:46,822 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 03:15:46,822 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009209673] [2019-10-15 03:15:46,823 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688612926] [2019-10-15 03:15:46,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:15:47,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:15:47,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:15:47,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:15:47,484 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 03:15:47,484 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:15:47,817 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 03:15:47,818 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1236816969] [2019-10-15 03:15:47,856 INFO L162 IcfgInterpreter]: Started Sifa with 164 locations of interest [2019-10-15 03:15:47,857 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:15:47,867 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:15:47,882 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:15:47,883 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs