java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:13:30,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:13:30,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:13:30,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:13:30,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:13:30,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:13:30,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:13:30,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:13:30,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:13:30,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:13:30,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:13:30,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:13:30,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:13:30,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:13:30,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:13:30,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:13:30,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:13:30,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:13:30,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:13:30,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:13:30,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:13:30,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:13:30,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:13:30,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:13:30,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:13:30,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:13:30,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:13:30,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:13:30,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:13:30,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:13:30,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:13:30,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:13:30,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:13:30,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:13:30,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:13:30,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:13:30,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:13:30,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:13:30,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:13:30,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:13:30,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:13:30,904 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 [2019-10-13 23:13:30,941 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:13:30,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:13:30,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:13:30,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:13:30,943 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:13:30,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:13:30,943 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:13:30,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:13:30,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:13:30,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:13:30,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:13:30,944 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:13:30,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:13:30,944 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:13:30,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:13:30,945 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:13:30,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:13:30,945 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:13:30,945 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:13:30,946 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:13:30,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:13:30,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:13:30,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:13:30,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:13:30,947 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:13:30,947 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:13:30,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:13:30,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:13:30,948 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 [2019-10-13 23:13:31,247 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:13:31,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:13:31,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:13:31,273 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:13:31,274 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:13:31,274 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c [2019-10-13 23:13:31,337 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f63acfe9a/f14bd929023c4f43b6a93a8a8d3faca3/FLAG03123d293 [2019-10-13 23:13:31,883 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:13:31,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product28.cil.c [2019-10-13 23:13:31,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f63acfe9a/f14bd929023c4f43b6a93a8a8d3faca3/FLAG03123d293 [2019-10-13 23:13:32,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f63acfe9a/f14bd929023c4f43b6a93a8a8d3faca3 [2019-10-13 23:13:32,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:13:32,175 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:13:32,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:32,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:13:32,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:13:32,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:32" (1/1) ... [2019-10-13 23:13:32,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4ad246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:32, skipping insertion in model container [2019-10-13 23:13:32,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:13:32" (1/1) ... [2019-10-13 23:13:32,191 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:13:32,257 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:13:32,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:32,981 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:13:33,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:13:33,191 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:13:33,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33 WrapperNode [2019-10-13 23:13:33,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:13:33,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:13:33,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:13:33,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:13:33,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (1/1) ... [2019-10-13 23:13:33,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:13:33,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:13:33,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:13:33,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:13:33,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (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 [2019-10-13 23:13:33,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:13:33,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:13:33,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:33,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:33,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:13:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:13:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:13:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:13:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:13:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:13:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:13:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:13:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:13:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:13:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:13:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:13:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:13:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:13:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:13:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:13:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:13:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:13:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:13:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:13:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:13:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:13:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:13:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:13:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:13:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:13:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:13:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:13:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:13:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:13:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:13:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:13:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:13:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:13:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:13:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:13:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:13:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:13:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:13:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:13:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:13:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:13:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:13:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:13:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:13:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:13:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:13:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:13:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:13:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:13:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:13:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:13:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:13:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:13:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:13:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:13:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:13:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:13:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:13:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:13:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:13:33,470 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:13:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:13:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:13:33,471 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:13:33,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:13:33,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:13:33,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:13:33,472 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:13:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:13:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:13:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:13:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:13:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:13:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:13:33,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:13:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:13:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:13:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:13:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:13:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:13:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:13:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:13:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:13:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:13:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:13:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:13:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:13:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:13:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:13:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:13:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:13:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:13:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:13:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:13:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:13:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:13:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-13 23:13:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:13:33,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-13 23:13:33,481 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:13:33,481 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:13:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:13:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:13:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:13:33,482 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:13:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:13:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:13:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:13:33,483 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:13:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:13:33,484 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:13:33,487 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:13:33,487 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:13:33,487 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:13:33,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:13:33,488 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:13:33,488 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:13:33,488 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:13:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:13:33,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:13:33,490 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:13:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:13:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:13:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:13:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:13:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:13:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:13:33,495 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:13:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:13:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:13:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:13:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:13:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:13:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:13:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:13:33,496 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:13:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:13:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:13:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:13:33,497 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:13:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:13:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:13:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:13:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:13:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:13:33,498 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:13:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:13:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:13:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:13:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:13:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:13:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:13:33,499 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:13:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:13:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:13:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:13:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:13:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:13:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:13:33,500 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:13:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:13:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:13:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:13:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:13:33,501 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:13:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:13:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:13:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:13:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:13:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:13:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:13:33,502 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:13:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:13:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:13:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:13:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:13:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:13:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:13:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:13:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:13:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:13:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:13:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:13:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:13:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:13:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:13:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:13:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:13:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:13:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:13:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:13:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:13:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:13:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:13:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:13:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:13:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:13:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:13:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:13:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:13:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:13:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:13:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:13:33,506 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:13:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:13:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:13:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:13:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:13:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:13:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:13:33,507 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:13:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:13:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:13:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:13:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:13:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:13:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:13:33,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:13:37,843 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:13:37,843 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:13:37,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:37 BoogieIcfgContainer [2019-10-13 23:13:37,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:13:37,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:13:37,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:13:37,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:13:37,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:13:32" (1/3) ... [2019-10-13 23:13:37,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d581b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:37, skipping insertion in model container [2019-10-13 23:13:37,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:13:33" (2/3) ... [2019-10-13 23:13:37,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d581b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:13:37, skipping insertion in model container [2019-10-13 23:13:37,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:13:37" (3/3) ... [2019-10-13 23:13:37,854 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product28.cil.c [2019-10-13 23:13:37,864 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:13:37,873 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:13:37,884 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:13:37,912 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:13:37,913 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:13:37,913 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:13:37,913 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:13:37,913 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:13:37,913 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:13:37,913 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:13:37,913 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:13:37,940 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states. [2019-10-13 23:13:37,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:13:37,955 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:37,956 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:37,958 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:37,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1970581239, now seen corresponding path program 1 times [2019-10-13 23:13:37,974 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:37,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761772611] [2019-10-13 23:13:37,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:37,975 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:37,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:38,553 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761772611] [2019-10-13 23:13:38,554 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:38,554 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:13:38,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132495110] [2019-10-13 23:13:38,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:13:38,560 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:38,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:13:38,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:13:38,577 INFO L87 Difference]: Start difference. First operand 376 states. Second operand 2 states. [2019-10-13 23:13:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:38,638 INFO L93 Difference]: Finished difference Result 525 states and 623 transitions. [2019-10-13 23:13:38,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:13:38,640 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-13 23:13:38,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:38,673 INFO L225 Difference]: With dead ends: 525 [2019-10-13 23:13:38,673 INFO L226 Difference]: Without dead ends: 334 [2019-10-13 23:13:38,682 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 [2019-10-13 23:13:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-10-13 23:13:38,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2019-10-13 23:13:38,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2019-10-13 23:13:38,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 396 transitions. [2019-10-13 23:13:38,765 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 396 transitions. Word has length 125 [2019-10-13 23:13:38,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:38,768 INFO L462 AbstractCegarLoop]: Abstraction has 334 states and 396 transitions. [2019-10-13 23:13:38,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:13:38,768 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 396 transitions. [2019-10-13 23:13:38,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 23:13:38,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:38,773 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:38,773 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:38,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:38,773 INFO L82 PathProgramCache]: Analyzing trace with hash -2025006871, now seen corresponding path program 1 times [2019-10-13 23:13:38,774 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:38,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411029678] [2019-10-13 23:13:38,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:38,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:38,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:38,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:38,984 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:38,985 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411029678] [2019-10-13 23:13:38,985 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:38,985 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:38,985 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072622973] [2019-10-13 23:13:38,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:38,990 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:38,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:38,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:38,991 INFO L87 Difference]: Start difference. First operand 334 states and 396 transitions. Second operand 3 states. [2019-10-13 23:13:39,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:39,055 INFO L93 Difference]: Finished difference Result 510 states and 594 transitions. [2019-10-13 23:13:39,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:39,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-13 23:13:39,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:39,062 INFO L225 Difference]: With dead ends: 510 [2019-10-13 23:13:39,063 INFO L226 Difference]: Without dead ends: 336 [2019-10-13 23:13:39,065 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 [2019-10-13 23:13:39,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2019-10-13 23:13:39,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 336. [2019-10-13 23:13:39,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-10-13 23:13:39,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 398 transitions. [2019-10-13 23:13:39,170 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 398 transitions. Word has length 126 [2019-10-13 23:13:39,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:39,173 INFO L462 AbstractCegarLoop]: Abstraction has 336 states and 398 transitions. [2019-10-13 23:13:39,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:39,174 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 398 transitions. [2019-10-13 23:13:39,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-13 23:13:39,176 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:39,177 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] [2019-10-13 23:13:39,177 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:39,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:39,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1595466514, now seen corresponding path program 1 times [2019-10-13 23:13:39,183 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:39,183 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258871464] [2019-10-13 23:13:39,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:39,183 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:39,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:13:39,385 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258871464] [2019-10-13 23:13:39,385 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:39,385 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:39,385 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733882708] [2019-10-13 23:13:39,386 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:39,386 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:39,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:39,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:39,387 INFO L87 Difference]: Start difference. First operand 336 states and 398 transitions. Second operand 3 states. [2019-10-13 23:13:39,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:39,424 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2019-10-13 23:13:39,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:39,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 131 [2019-10-13 23:13:39,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:39,428 INFO L225 Difference]: With dead ends: 652 [2019-10-13 23:13:39,428 INFO L226 Difference]: Without dead ends: 374 [2019-10-13 23:13:39,430 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 [2019-10-13 23:13:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2019-10-13 23:13:39,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 373. [2019-10-13 23:13:39,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2019-10-13 23:13:39,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 463 transitions. [2019-10-13 23:13:39,450 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 463 transitions. Word has length 131 [2019-10-13 23:13:39,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:39,451 INFO L462 AbstractCegarLoop]: Abstraction has 373 states and 463 transitions. [2019-10-13 23:13:39,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:39,451 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 463 transitions. [2019-10-13 23:13:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-13 23:13:39,454 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:39,454 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] [2019-10-13 23:13:39,454 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:39,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:39,455 INFO L82 PathProgramCache]: Analyzing trace with hash -528535397, now seen corresponding path program 1 times [2019-10-13 23:13:39,455 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:39,455 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649479744] [2019-10-13 23:13:39,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:39,456 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:39,456 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:13:39,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649479744] [2019-10-13 23:13:39,630 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:13:39,630 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:13:39,630 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446527594] [2019-10-13 23:13:39,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:13:39,636 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:13:39,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:13:39,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:39,637 INFO L87 Difference]: Start difference. First operand 373 states and 463 transitions. Second operand 3 states. [2019-10-13 23:13:39,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:13:39,704 INFO L93 Difference]: Finished difference Result 593 states and 717 transitions. [2019-10-13 23:13:39,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:13:39,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2019-10-13 23:13:39,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:13:39,710 INFO L225 Difference]: With dead ends: 593 [2019-10-13 23:13:39,710 INFO L226 Difference]: Without dead ends: 422 [2019-10-13 23:13:39,712 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:13:39,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-13 23:13:39,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 422. [2019-10-13 23:13:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-13 23:13:39,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 512 transitions. [2019-10-13 23:13:39,742 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 512 transitions. Word has length 132 [2019-10-13 23:13:39,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:13:39,743 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 512 transitions. [2019-10-13 23:13:39,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:13:39,743 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 512 transitions. [2019-10-13 23:13:39,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-13 23:13:39,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:13:39,748 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:13:39,748 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:13:39,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:13:39,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1953863917, now seen corresponding path program 1 times [2019-10-13 23:13:39,749 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:13:39,749 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856591575] [2019-10-13 23:13:39,749 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:39,749 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:13:39,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:13:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:40,683 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:40,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856591575] [2019-10-13 23:13:40,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229345168] [2019-10-13 23:13:40,684 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 [2019-10-13 23:13:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:13:41,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 3017 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:13:41,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:13:41,487 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-13 23:13:41,487 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:13:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:13:42,085 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1877495533] [2019-10-13 23:13:42,116 INFO L162 IcfgInterpreter]: Started Sifa with 186 locations of interest [2019-10-13 23:13:42,116 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:13:42,124 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:13:42,132 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:13:42,132 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs