java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:11:15,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:11:15,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:11:15,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:11:15,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:11:15,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:11:15,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:11:15,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:11:15,674 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:11:15,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:11:15,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:11:15,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:11:15,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:11:15,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:11:15,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:11:15,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:11:15,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:11:15,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:11:15,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:11:15,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:11:15,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:11:15,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:11:15,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:11:15,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:11:15,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:11:15,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:11:15,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:11:15,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:11:15,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:11:15,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:11:15,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:11:15,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:11:15,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:11:15,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:11:15,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:11:15,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:11:15,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:11:15,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:11:15,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:11:15,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:11:15,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:11:15,720 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 23:11:15,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:11:15,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:11:15,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:11:15,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:11:15,748 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:11:15,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:11:15,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:11:15,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:11:15,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:11:15,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:11:15,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:11:15,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:11:15,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:11:15,750 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:11:15,751 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:11:15,751 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:11:15,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:11:15,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:11:15,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:11:15,752 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:11:15,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:11:15,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:11:15,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:11:15,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:11:15,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:11:15,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:11:15,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:11:15,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:11:15,753 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 23:11:16,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:11:16,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:11:16,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:11:16,034 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:11:16,034 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:11:16,035 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-13 23:11:16,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a96fb6c/ee36e0dd6cea488db87b1433061de55d/FLAG9761680b7 [2019-10-13 23:11:16,768 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:11:16,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-13 23:11:16,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a96fb6c/ee36e0dd6cea488db87b1433061de55d/FLAG9761680b7 [2019-10-13 23:11:16,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a96fb6c/ee36e0dd6cea488db87b1433061de55d [2019-10-13 23:11:16,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:11:16,980 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:11:16,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:16,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:11:16,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:11:16,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea49d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:16, skipping insertion in model container [2019-10-13 23:11:16,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:11:16" (1/1) ... [2019-10-13 23:11:16,993 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:11:17,080 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:11:17,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:17,857 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:11:18,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:11:18,197 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:11:18,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18 WrapperNode [2019-10-13 23:11:18,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:11:18,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:11:18,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:11:18,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:11:18,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (1/1) ... [2019-10-13 23:11:18,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:11:18,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:11:18,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:11:18,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:11:18,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (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 23:11:18,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:11:18,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:11:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:11:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:11:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:11:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:11:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:11:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:11:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:11:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:11:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:11:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:11:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:11:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:11:18,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:11:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:11:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:11:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:11:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:11:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:11:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:11:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:11:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:11:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:11:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:11:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:11:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:11:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:11:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:11:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:11:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:11:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:11:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:11:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:11:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:11:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:11:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:11:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:11:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:11:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:11:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:11:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:11:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:11:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:11:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:11:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:11:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:11:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:11:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:11:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:11:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:11:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:11:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:11:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:11:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:11:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:11:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:11:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:11:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:11:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:11:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:11:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:11:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:11:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:11:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:11:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:11:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:11:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:11:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:11:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:11:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:11:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:11:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:11:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:11:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:11:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:11:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:11:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:11:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:11:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:11:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:11:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:11:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:11:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:11:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:11:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:11:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:11:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:11:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:11:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:11:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:11:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:11:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:11:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:11:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:11:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:11:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:11:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:11:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:11:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:11:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:11:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:11:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:11:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:11:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:11:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:11:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:11:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:11:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:11:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:11:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:11:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:11:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:11:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:11:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:11:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:11:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:11:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:11:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:11:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:11:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:11:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:11:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:11:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:11:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:11:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:11:18,529 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:11:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:11:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:11:18,530 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:11:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:11:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:11:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:11:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:11:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:11:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:11:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:11:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:11:18,539 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:11:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:11:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:11:18,540 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:11:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:11:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:11:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:11:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:11:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:11:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:11:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:11:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:11:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:11:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:11:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:11:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:11:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:11:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:11:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:11:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:11:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:11:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:11:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:11:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:11:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:11:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:11:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:11:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:11:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:11:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:11:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:11:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:11:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:11:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:11:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:11:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:11:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:11:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:11:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:11:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:11:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:11:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:11:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:11:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:11:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:11:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:11:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:11:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:11:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:11:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:11:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:11:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:11:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:11:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:11:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:11:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:11:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:11:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:11:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:11:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:11:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:11:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:11:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:11:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:11:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:11:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:11:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:11:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:11:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:11:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:11:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:11:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:11:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:11:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:11:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:11:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:11:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:11:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:11:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:11:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:11:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:11:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:11:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:11:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:11:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-13 23:11:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:11:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:11:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:11:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:11:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:11:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-13 23:11:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:11:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:11:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:11:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:11:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:11:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:11:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:11:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:11:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:11:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:11:22,985 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:11:22,985 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:11:22,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:22 BoogieIcfgContainer [2019-10-13 23:11:22,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:11:22,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:11:22,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:11:22,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:11:22,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:11:16" (1/3) ... [2019-10-13 23:11:22,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3031ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:22, skipping insertion in model container [2019-10-13 23:11:22,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:11:18" (2/3) ... [2019-10-13 23:11:22,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d3031ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:11:22, skipping insertion in model container [2019-10-13 23:11:22,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:11:22" (3/3) ... [2019-10-13 23:11:22,996 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2019-10-13 23:11:23,006 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:11:23,015 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:11:23,027 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:11:23,056 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:11:23,057 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:11:23,057 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:11:23,057 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:11:23,057 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:11:23,057 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:11:23,057 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:11:23,057 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:11:23,087 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states. [2019-10-13 23:11:23,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-13 23:11:23,105 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:23,106 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:23,108 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:23,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:23,114 INFO L82 PathProgramCache]: Analyzing trace with hash 275868644, now seen corresponding path program 1 times [2019-10-13 23:11:23,124 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:23,125 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922371603] [2019-10-13 23:11:23,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:23,125 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:23,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:23,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922371603] [2019-10-13 23:11:23,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:23,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:11:23,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562214178] [2019-10-13 23:11:23,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:11:23,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:23,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:11:23,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:11:23,811 INFO L87 Difference]: Start difference. First operand 417 states. Second operand 2 states. [2019-10-13 23:11:23,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:23,885 INFO L93 Difference]: Finished difference Result 642 states and 763 transitions. [2019-10-13 23:11:23,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:11:23,887 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 147 [2019-10-13 23:11:23,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:23,908 INFO L225 Difference]: With dead ends: 642 [2019-10-13 23:11:23,908 INFO L226 Difference]: Without dead ends: 396 [2019-10-13 23:11:23,914 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 23:11:23,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-10-13 23:11:23,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2019-10-13 23:11:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2019-10-13 23:11:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 469 transitions. [2019-10-13 23:11:24,003 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 469 transitions. Word has length 147 [2019-10-13 23:11:24,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:24,005 INFO L462 AbstractCegarLoop]: Abstraction has 396 states and 469 transitions. [2019-10-13 23:11:24,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:11:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 469 transitions. [2019-10-13 23:11:24,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-13 23:11:24,011 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:24,011 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:24,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:24,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:24,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1868310216, now seen corresponding path program 1 times [2019-10-13 23:11:24,012 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:24,012 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987840635] [2019-10-13 23:11:24,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:24,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:24,345 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987840635] [2019-10-13 23:11:24,345 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:24,346 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:24,346 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270424641] [2019-10-13 23:11:24,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:24,351 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:24,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:24,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:24,352 INFO L87 Difference]: Start difference. First operand 396 states and 469 transitions. Second operand 3 states. [2019-10-13 23:11:24,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:24,437 INFO L93 Difference]: Finished difference Result 627 states and 733 transitions. [2019-10-13 23:11:24,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:24,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2019-10-13 23:11:24,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:24,451 INFO L225 Difference]: With dead ends: 627 [2019-10-13 23:11:24,451 INFO L226 Difference]: Without dead ends: 398 [2019-10-13 23:11:24,456 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 23:11:24,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-10-13 23:11:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2019-10-13 23:11:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-10-13 23:11:24,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 471 transitions. [2019-10-13 23:11:24,488 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 471 transitions. Word has length 148 [2019-10-13 23:11:24,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:24,489 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 471 transitions. [2019-10-13 23:11:24,489 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:24,489 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 471 transitions. [2019-10-13 23:11:24,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:11:24,493 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:24,493 INFO L380 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] [2019-10-13 23:11:24,493 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:24,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:24,494 INFO L82 PathProgramCache]: Analyzing trace with hash -150332791, now seen corresponding path program 1 times [2019-10-13 23:11:24,494 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:24,494 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627425044] [2019-10-13 23:11:24,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,494 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,494 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:24,733 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:24,734 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627425044] [2019-10-13 23:11:24,734 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:24,734 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:24,735 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378681450] [2019-10-13 23:11:24,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:24,739 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:24,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:24,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:24,740 INFO L87 Difference]: Start difference. First operand 398 states and 471 transitions. Second operand 3 states. [2019-10-13 23:11:24,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:24,818 INFO L93 Difference]: Finished difference Result 778 states and 949 transitions. [2019-10-13 23:11:24,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:24,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-13 23:11:24,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:24,828 INFO L225 Difference]: With dead ends: 778 [2019-10-13 23:11:24,828 INFO L226 Difference]: Without dead ends: 438 [2019-10-13 23:11:24,830 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 23:11:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-10-13 23:11:24,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 437. [2019-10-13 23:11:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2019-10-13 23:11:24,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 539 transitions. [2019-10-13 23:11:24,888 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 539 transitions. Word has length 153 [2019-10-13 23:11:24,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:24,889 INFO L462 AbstractCegarLoop]: Abstraction has 437 states and 539 transitions. [2019-10-13 23:11:24,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:24,890 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 539 transitions. [2019-10-13 23:11:24,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-13 23:11:24,903 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:24,904 INFO L380 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] [2019-10-13 23:11:24,904 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:24,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:24,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1314254042, now seen corresponding path program 1 times [2019-10-13 23:11:24,905 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:24,905 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711039551] [2019-10-13 23:11:24,906 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,906 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:24,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:25,663 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:11:25,664 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711039551] [2019-10-13 23:11:25,664 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:25,664 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-10-13 23:11:25,664 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252245608] [2019-10-13 23:11:25,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-10-13 23:11:25,666 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:25,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-10-13 23:11:25,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-10-13 23:11:25,667 INFO L87 Difference]: Start difference. First operand 437 states and 539 transitions. Second operand 24 states. [2019-10-13 23:11:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:34,076 INFO L93 Difference]: Finished difference Result 1242 states and 1483 transitions. [2019-10-13 23:11:34,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-10-13 23:11:34,076 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 154 [2019-10-13 23:11:34,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:34,082 INFO L225 Difference]: With dead ends: 1242 [2019-10-13 23:11:34,083 INFO L226 Difference]: Without dead ends: 885 [2019-10-13 23:11:34,086 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=255, Invalid=2295, Unknown=0, NotChecked=0, Total=2550 [2019-10-13 23:11:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2019-10-13 23:11:34,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 876. [2019-10-13 23:11:34,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 876 states. [2019-10-13 23:11:34,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1039 transitions. [2019-10-13 23:11:34,199 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1039 transitions. Word has length 154 [2019-10-13 23:11:34,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:34,200 INFO L462 AbstractCegarLoop]: Abstraction has 876 states and 1039 transitions. [2019-10-13 23:11:34,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-10-13 23:11:34,200 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1039 transitions. [2019-10-13 23:11:34,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-13 23:11:34,203 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:34,203 INFO L380 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] [2019-10-13 23:11:34,203 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:34,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:34,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1356524406, now seen corresponding path program 1 times [2019-10-13 23:11:34,204 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:34,204 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279767805] [2019-10-13 23:11:34,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:34,204 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:34,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:34,573 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:11:34,573 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279767805] [2019-10-13 23:11:34,574 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:34,574 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 23:11:34,574 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687161813] [2019-10-13 23:11:34,575 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 23:11:34,575 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:34,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 23:11:34,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-10-13 23:11:34,577 INFO L87 Difference]: Start difference. First operand 876 states and 1039 transitions. Second operand 14 states. [2019-10-13 23:11:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:38,672 INFO L93 Difference]: Finished difference Result 2008 states and 2350 transitions. [2019-10-13 23:11:38,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:11:38,673 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 160 [2019-10-13 23:11:38,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:38,682 INFO L225 Difference]: With dead ends: 2008 [2019-10-13 23:11:38,682 INFO L226 Difference]: Without dead ends: 1436 [2019-10-13 23:11:38,684 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=531, Unknown=0, NotChecked=0, Total=650 [2019-10-13 23:11:38,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2019-10-13 23:11:38,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1366. [2019-10-13 23:11:38,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2019-10-13 23:11:38,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1604 transitions. [2019-10-13 23:11:38,780 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1604 transitions. Word has length 160 [2019-10-13 23:11:38,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:38,781 INFO L462 AbstractCegarLoop]: Abstraction has 1366 states and 1604 transitions. [2019-10-13 23:11:38,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 23:11:38,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1604 transitions. [2019-10-13 23:11:38,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 23:11:38,785 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:38,785 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:38,786 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:38,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1467084693, now seen corresponding path program 1 times [2019-10-13 23:11:38,786 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:38,787 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775942600] [2019-10-13 23:11:38,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:38,787 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:38,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:38,919 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:38,920 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775942600] [2019-10-13 23:11:38,920 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:38,921 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:38,921 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962456972] [2019-10-13 23:11:38,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:38,922 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:38,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:38,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:38,922 INFO L87 Difference]: Start difference. First operand 1366 states and 1604 transitions. Second operand 3 states. [2019-10-13 23:11:38,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:38,995 INFO L93 Difference]: Finished difference Result 2786 states and 3341 transitions. [2019-10-13 23:11:38,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:38,996 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-10-13 23:11:38,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:39,004 INFO L225 Difference]: With dead ends: 2786 [2019-10-13 23:11:39,004 INFO L226 Difference]: Without dead ends: 1478 [2019-10-13 23:11:39,009 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 23:11:39,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2019-10-13 23:11:39,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1476. [2019-10-13 23:11:39,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1476 states. [2019-10-13 23:11:39,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 1795 transitions. [2019-10-13 23:11:39,086 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 1795 transitions. Word has length 182 [2019-10-13 23:11:39,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:39,087 INFO L462 AbstractCegarLoop]: Abstraction has 1476 states and 1795 transitions. [2019-10-13 23:11:39,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:39,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 1795 transitions. [2019-10-13 23:11:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 23:11:39,091 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:39,091 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:39,092 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:39,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:39,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1992481138, now seen corresponding path program 1 times [2019-10-13 23:11:39,092 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:39,092 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078167100] [2019-10-13 23:11:39,093 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:39,093 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:39,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:39,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078167100] [2019-10-13 23:11:39,227 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:39,227 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:39,227 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081621141] [2019-10-13 23:11:39,228 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:39,228 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:39,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:39,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:39,229 INFO L87 Difference]: Start difference. First operand 1476 states and 1795 transitions. Second operand 3 states. [2019-10-13 23:11:39,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:39,392 INFO L93 Difference]: Finished difference Result 3101 states and 3890 transitions. [2019-10-13 23:11:39,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:39,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-13 23:11:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:39,406 INFO L225 Difference]: With dead ends: 3101 [2019-10-13 23:11:39,406 INFO L226 Difference]: Without dead ends: 1683 [2019-10-13 23:11:39,411 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 23:11:39,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1683 states. [2019-10-13 23:11:39,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1683 to 1681. [2019-10-13 23:11:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1681 states. [2019-10-13 23:11:39,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1681 states to 1681 states and 2150 transitions. [2019-10-13 23:11:39,522 INFO L78 Accepts]: Start accepts. Automaton has 1681 states and 2150 transitions. Word has length 183 [2019-10-13 23:11:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:39,523 INFO L462 AbstractCegarLoop]: Abstraction has 1681 states and 2150 transitions. [2019-10-13 23:11:39,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:39,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1681 states and 2150 transitions. [2019-10-13 23:11:39,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 23:11:39,531 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:39,531 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:11:39,531 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:39,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:39,532 INFO L82 PathProgramCache]: Analyzing trace with hash -2073737266, now seen corresponding path program 1 times [2019-10-13 23:11:39,532 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:39,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745072506] [2019-10-13 23:11:39,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:39,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:39,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 23:11:39,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745072506] [2019-10-13 23:11:39,948 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:39,948 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:39,948 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141895787] [2019-10-13 23:11:39,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:39,950 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:39,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:39,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:39,950 INFO L87 Difference]: Start difference. First operand 1681 states and 2150 transitions. Second operand 12 states. [2019-10-13 23:11:44,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:44,578 INFO L93 Difference]: Finished difference Result 3792 states and 4984 transitions. [2019-10-13 23:11:44,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 23:11:44,579 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2019-10-13 23:11:44,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:44,600 INFO L225 Difference]: With dead ends: 3792 [2019-10-13 23:11:44,601 INFO L226 Difference]: Without dead ends: 2746 [2019-10-13 23:11:44,607 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2019-10-13 23:11:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2019-10-13 23:11:44,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2075. [2019-10-13 23:11:44,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2075 states. [2019-10-13 23:11:44,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2843 transitions. [2019-10-13 23:11:44,921 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2843 transitions. Word has length 189 [2019-10-13 23:11:44,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:44,924 INFO L462 AbstractCegarLoop]: Abstraction has 2075 states and 2843 transitions. [2019-10-13 23:11:44,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:11:44,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2843 transitions. [2019-10-13 23:11:44,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-10-13 23:11:44,932 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:44,933 INFO L380 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, 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 23:11:44,933 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:44,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:44,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1277033729, now seen corresponding path program 1 times [2019-10-13 23:11:44,934 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:44,934 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998423286] [2019-10-13 23:11:44,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:44,934 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:44,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:45,090 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998423286] [2019-10-13 23:11:45,092 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:45,092 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:11:45,093 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386813297] [2019-10-13 23:11:45,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:11:45,094 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:45,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:11:45,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:11:45,095 INFO L87 Difference]: Start difference. First operand 2075 states and 2843 transitions. Second operand 3 states. [2019-10-13 23:11:45,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:11:45,228 INFO L93 Difference]: Finished difference Result 4373 states and 6142 transitions. [2019-10-13 23:11:45,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:11:45,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2019-10-13 23:11:45,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:11:45,244 INFO L225 Difference]: With dead ends: 4373 [2019-10-13 23:11:45,244 INFO L226 Difference]: Without dead ends: 2360 [2019-10-13 23:11:45,252 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 23:11:45,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2019-10-13 23:11:45,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2359. [2019-10-13 23:11:45,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2359 states. [2019-10-13 23:11:45,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3343 transitions. [2019-10-13 23:11:45,404 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3343 transitions. Word has length 185 [2019-10-13 23:11:45,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:11:45,404 INFO L462 AbstractCegarLoop]: Abstraction has 2359 states and 3343 transitions. [2019-10-13 23:11:45,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:11:45,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3343 transitions. [2019-10-13 23:11:45,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-13 23:11:45,417 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:11:45,417 INFO L380 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, 1, 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 23:11:45,417 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:11:45,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:11:45,418 INFO L82 PathProgramCache]: Analyzing trace with hash -413198012, now seen corresponding path program 1 times [2019-10-13 23:11:45,418 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:11:45,418 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242138309] [2019-10-13 23:11:45,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:45,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:11:45,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:11:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:11:45,696 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 23:11:45,696 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242138309] [2019-10-13 23:11:45,696 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:11:45,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:11:45,697 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818446072] [2019-10-13 23:11:45,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:11:45,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:11:45,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:11:45,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:11:45,698 INFO L87 Difference]: Start difference. First operand 2359 states and 3343 transitions. Second operand 12 states.