/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:13:49,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:13:49,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:13:49,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:13:49,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:13:49,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:13:49,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:13:49,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:13:49,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:13:49,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:13:49,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:13:49,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:13:49,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:13:49,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:13:49,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:13:49,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:13:49,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:13:49,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:13:49,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:13:49,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:13:49,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:13:49,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:13:49,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:13:49,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:13:49,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:13:49,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:13:49,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:13:49,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:13:49,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:13:49,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:13:49,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:13:49,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:13:49,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:13:49,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:13:49,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:13:49,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:13:49,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:13:49,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:13:49,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:13:49,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:13:49,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:13:49,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:13:49,484 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:13:49,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:13:49,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:13:49,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:13:49,489 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:13:49,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:13:49,490 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:13:49,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:13:49,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:13:49,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:13:49,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:13:49,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:13:49,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:13:49,491 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:13:49,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:13:49,492 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:13:49,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:13:49,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:13:49,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:13:49,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:13:49,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:13:49,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:13:49,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:13:49,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:13:49,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:13:49,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:13:49,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:13:49,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:13:49,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:13:49,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:13:49,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:13:49,853 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:13:49,854 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:13:49,854 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:13:49,855 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-11-07 04:13:49,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/726e3feef/6471882a3ac44cc9bb2e838050106cd3/FLAGaea2316d6 [2019-11-07 04:13:50,528 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:13:50,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-11-07 04:13:50,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/726e3feef/6471882a3ac44cc9bb2e838050106cd3/FLAGaea2316d6 [2019-11-07 04:13:50,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/726e3feef/6471882a3ac44cc9bb2e838050106cd3 [2019-11-07 04:13:50,780 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:13:50,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:13:50,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:13:50,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:13:50,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:13:50,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:13:50" (1/1) ... [2019-11-07 04:13:50,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab00c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:50, skipping insertion in model container [2019-11-07 04:13:50,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:13:50" (1/1) ... [2019-11-07 04:13:50,799 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:13:50,878 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:13:51,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:13:51,636 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:13:51,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:13:51,961 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:13:51,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51 WrapperNode [2019-11-07 04:13:51,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:13:51,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:13:51,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:13:51,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:13:51,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (1/1) ... [2019-11-07 04:13:51,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (1/1) ... [2019-11-07 04:13:52,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (1/1) ... [2019-11-07 04:13:52,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (1/1) ... [2019-11-07 04:13:52,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (1/1) ... [2019-11-07 04:13:52,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (1/1) ... [2019-11-07 04:13:52,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (1/1) ... [2019-11-07 04:13:52,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:13:52,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:13:52,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:13:52,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:13:52,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:13:52,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:13:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:13:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:13:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:13:52,244 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:13:52,245 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:13:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:13:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 04:13:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 04:13:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 04:13:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 04:13:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 04:13:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 04:13:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 04:13:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 04:13:52,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:13:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:13:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 04:13:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 04:13:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 04:13:52,249 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 04:13:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 04:13:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 04:13:52,250 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 04:13:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 04:13:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 04:13:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 04:13:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:13:52,251 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 04:13:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 04:13:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 04:13:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 04:13:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 04:13:52,252 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 04:13:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:13:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:13:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:13:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:13:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:13:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:13:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:13:52,253 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 04:13:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 04:13:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 04:13:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 04:13:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 04:13:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 04:13:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 04:13:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 04:13:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 04:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 04:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 04:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 04:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 04:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 04:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 04:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 04:13:52,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 04:13:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 04:13:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 04:13:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 04:13:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 04:13:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 04:13:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 04:13:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 04:13:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 04:13:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 04:13:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 04:13:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 04:13:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 04:13:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 04:13:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 04:13:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 04:13:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 04:13:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 04:13:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 04:13:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 04:13:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 04:13:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 04:13:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 04:13:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 04:13:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 04:13:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 04:13:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 04:13:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 04:13:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 04:13:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 04:13:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 04:13:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 04:13:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 04:13:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 04:13:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 04:13:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 04:13:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 04:13:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 04:13:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 04:13:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 04:13:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-11-07 04:13:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-11-07 04:13:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 04:13:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 04:13:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 04:13:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 04:13:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 04:13:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 04:13:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 04:13:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 04:13:52,264 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 04:13:52,264 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 04:13:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:13:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:13:52,264 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:13:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:13:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:13:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:13:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:13:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 04:13:52,265 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 04:13:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 04:13:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 04:13:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 04:13:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 04:13:52,266 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 04:13:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 04:13:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 04:13:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 04:13:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 04:13:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 04:13:52,267 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 04:13:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 04:13:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 04:13:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 04:13:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 04:13:52,268 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 04:13:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 04:13:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 04:13:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:13:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:13:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:13:52,269 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 04:13:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 04:13:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 04:13:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 04:13:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 04:13:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 04:13:52,270 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 04:13:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 04:13:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 04:13:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 04:13:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 04:13:52,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 04:13:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 04:13:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:13:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:13:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 04:13:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 04:13:52,272 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 04:13:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 04:13:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 04:13:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 04:13:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 04:13:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 04:13:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 04:13:52,273 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 04:13:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 04:13:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 04:13:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 04:13:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:13:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:13:52,274 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:13:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:13:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:13:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:13:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:13:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:13:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:13:52,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:13:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:13:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:13:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:13:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:13:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:13:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:13:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 04:13:52,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 04:13:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 04:13:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 04:13:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 04:13:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 04:13:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 04:13:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 04:13:52,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 04:13:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 04:13:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 04:13:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 04:13:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 04:13:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 04:13:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 04:13:52,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 04:13:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 04:13:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 04:13:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 04:13:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 04:13:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 04:13:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 04:13:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 04:13:52,279 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 04:13:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 04:13:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 04:13:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 04:13:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 04:13:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 04:13:52,280 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 04:13:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 04:13:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 04:13:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 04:13:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 04:13:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 04:13:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-11-07 04:13:52,281 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 04:13:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 04:13:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 04:13:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 04:13:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 04:13:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 04:13:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 04:13:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 04:13:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 04:13:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-11-07 04:13:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-11-07 04:13:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:13:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:13:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:13:56,629 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:13:56,629 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 04:13:56,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:13:56 BoogieIcfgContainer [2019-11-07 04:13:56,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:13:56,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:13:56,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:13:56,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:13:56,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:13:50" (1/3) ... [2019-11-07 04:13:56,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5de9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:13:56, skipping insertion in model container [2019-11-07 04:13:56,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:51" (2/3) ... [2019-11-07 04:13:56,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d5de9ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:13:56, skipping insertion in model container [2019-11-07 04:13:56,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:13:56" (3/3) ... [2019-11-07 04:13:56,644 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2019-11-07 04:13:56,655 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:13:56,667 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:13:56,682 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:13:56,713 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:13:56,713 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:13:56,713 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:13:56,713 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:13:56,713 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:13:56,713 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:13:56,714 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:13:56,714 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:13:56,742 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2019-11-07 04:13:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-11-07 04:13:56,761 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:56,763 INFO L410 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] [2019-11-07 04:13:56,765 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:56,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:56,772 INFO L82 PathProgramCache]: Analyzing trace with hash 297708162, now seen corresponding path program 1 times [2019-11-07 04:13:56,782 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:56,783 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198580148] [2019-11-07 04:13:56,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:57,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:13:57,538 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198580148] [2019-11-07 04:13:57,538 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:57,539 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:13:57,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545219672] [2019-11-07 04:13:57,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:13:57,545 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:57,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:13:57,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:13:57,561 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 2 states. [2019-11-07 04:13:57,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:57,648 INFO L93 Difference]: Finished difference Result 498 states and 588 transitions. [2019-11-07 04:13:57,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:13:57,650 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 149 [2019-11-07 04:13:57,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:57,679 INFO L225 Difference]: With dead ends: 498 [2019-11-07 04:13:57,679 INFO L226 Difference]: Without dead ends: 324 [2019-11-07 04:13:57,689 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:13:57,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-11-07 04:13:57,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2019-11-07 04:13:57,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2019-11-07 04:13:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 381 transitions. [2019-11-07 04:13:57,820 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 381 transitions. Word has length 149 [2019-11-07 04:13:57,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:57,823 INFO L462 AbstractCegarLoop]: Abstraction has 324 states and 381 transitions. [2019-11-07 04:13:57,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:13:57,824 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 381 transitions. [2019-11-07 04:13:57,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-07 04:13:57,832 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:57,832 INFO L410 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] [2019-11-07 04:13:57,833 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:57,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:57,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1351301717, now seen corresponding path program 1 times [2019-11-07 04:13:57,833 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:57,834 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210525526] [2019-11-07 04:13:57,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:58,144 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:13:58,144 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210525526] [2019-11-07 04:13:58,145 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:58,145 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:13:58,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493746320] [2019-11-07 04:13:58,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:13:58,150 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:58,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:13:58,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:58,151 INFO L87 Difference]: Start difference. First operand 324 states and 381 transitions. Second operand 3 states. [2019-11-07 04:13:58,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:58,225 INFO L93 Difference]: Finished difference Result 483 states and 557 transitions. [2019-11-07 04:13:58,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:13:58,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2019-11-07 04:13:58,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:58,231 INFO L225 Difference]: With dead ends: 483 [2019-11-07 04:13:58,232 INFO L226 Difference]: Without dead ends: 326 [2019-11-07 04:13:58,237 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:58,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-11-07 04:13:58,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2019-11-07 04:13:58,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-11-07 04:13:58,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 383 transitions. [2019-11-07 04:13:58,273 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 383 transitions. Word has length 150 [2019-11-07 04:13:58,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:58,274 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 383 transitions. [2019-11-07 04:13:58,274 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:13:58,274 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 383 transitions. [2019-11-07 04:13:58,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-11-07 04:13:58,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:58,278 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:13:58,278 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:58,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:58,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1119639850, now seen corresponding path program 1 times [2019-11-07 04:13:58,279 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:58,279 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477126122] [2019-11-07 04:13:58,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:58,504 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:13:58,504 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477126122] [2019-11-07 04:13:58,504 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:58,505 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:13:58,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980741050] [2019-11-07 04:13:58,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:13:58,507 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:58,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:13:58,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:58,508 INFO L87 Difference]: Start difference. First operand 326 states and 383 transitions. Second operand 3 states. [2019-11-07 04:13:58,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:58,571 INFO L93 Difference]: Finished difference Result 634 states and 773 transitions. [2019-11-07 04:13:58,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:13:58,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-11-07 04:13:58,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:58,580 INFO L225 Difference]: With dead ends: 634 [2019-11-07 04:13:58,580 INFO L226 Difference]: Without dead ends: 366 [2019-11-07 04:13:58,585 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-11-07 04:13:58,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2019-11-07 04:13:58,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-11-07 04:13:58,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2019-11-07 04:13:58,634 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 451 transitions. Word has length 155 [2019-11-07 04:13:58,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:58,635 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 451 transitions. [2019-11-07 04:13:58,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:13:58,636 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 451 transitions. [2019-11-07 04:13:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-11-07 04:13:58,642 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:58,643 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:13:58,643 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:58,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:58,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1254907282, now seen corresponding path program 1 times [2019-11-07 04:13:58,644 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:58,644 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444160703] [2019-11-07 04:13:58,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:59,480 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:13:59,481 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444160703] [2019-11-07 04:13:59,481 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:59,481 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-11-07 04:13:59,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058593760] [2019-11-07 04:13:59,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-07 04:13:59,482 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:59,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-07 04:13:59,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-11-07 04:13:59,484 INFO L87 Difference]: Start difference. First operand 365 states and 451 transitions. Second operand 26 states. [2019-11-07 04:14:05,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:05,543 INFO L93 Difference]: Finished difference Result 720 states and 872 transitions. [2019-11-07 04:14:05,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-11-07 04:14:05,547 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 156 [2019-11-07 04:14:05,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:05,552 INFO L225 Difference]: With dead ends: 720 [2019-11-07 04:14:05,553 INFO L226 Difference]: Without dead ends: 558 [2019-11-07 04:14:05,554 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=1647, Unknown=0, NotChecked=0, Total=1806 [2019-11-07 04:14:05,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2019-11-07 04:14:05,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 546. [2019-11-07 04:14:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2019-11-07 04:14:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 666 transitions. [2019-11-07 04:14:05,586 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 666 transitions. Word has length 156 [2019-11-07 04:14:05,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:05,588 INFO L462 AbstractCegarLoop]: Abstraction has 546 states and 666 transitions. [2019-11-07 04:14:05,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-07 04:14:05,588 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 666 transitions. [2019-11-07 04:14:05,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 04:14:05,592 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:05,592 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:14:05,592 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:05,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:05,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1443475956, now seen corresponding path program 1 times [2019-11-07 04:14:05,593 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:05,593 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865052811] [2019-11-07 04:14:05,593 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-11-07 04:14:05,793 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865052811] [2019-11-07 04:14:05,793 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:14:05,793 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:14:05,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501444577] [2019-11-07 04:14:05,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:14:05,795 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:14:05,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:14:05,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:14:05,796 INFO L87 Difference]: Start difference. First operand 546 states and 666 transitions. Second operand 10 states. [2019-11-07 04:14:05,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:14:05,859 INFO L93 Difference]: Finished difference Result 555 states and 676 transitions. [2019-11-07 04:14:05,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:14:05,860 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2019-11-07 04:14:05,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:14:05,867 INFO L225 Difference]: With dead ends: 555 [2019-11-07 04:14:05,868 INFO L226 Difference]: Without dead ends: 550 [2019-11-07 04:14:05,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:14:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-11-07 04:14:05,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2019-11-07 04:14:05,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-11-07 04:14:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 669 transitions. [2019-11-07 04:14:05,911 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 669 transitions. Word has length 160 [2019-11-07 04:14:05,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:14:05,913 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 669 transitions. [2019-11-07 04:14:05,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:14:05,913 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 669 transitions. [2019-11-07 04:14:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-11-07 04:14:05,918 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:14:05,918 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:14:05,919 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:14:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:14:05,919 INFO L82 PathProgramCache]: Analyzing trace with hash 903951142, now seen corresponding path program 1 times [2019-11-07 04:14:05,919 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:14:05,920 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485323242] [2019-11-07 04:14:05,920 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:14:06,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-11-07 04:14:06,873 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485323242] [2019-11-07 04:14:06,873 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708875184] [2019-11-07 04:14:06,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:14:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:14:07,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:14:07,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:14:07,674 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:07,675 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:14:07,922 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-11-07 04:14:07,922 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [158404949] [2019-11-07 04:14:07,962 INFO L159 IcfgInterpreter]: Started Sifa with 147 locations of interest [2019-11-07 04:14:07,962 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:14:07,970 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:14:07,978 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:14:07,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs