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_spec11_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:11:29,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:11:29,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:11:29,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:11:29,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:11:29,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:11:29,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:11:29,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:11:29,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:11:29,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:11:29,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:11:29,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:11:29,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:11:29,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:11:29,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:11:29,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:11:29,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:11:29,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:11:29,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:11:29,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:11:29,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:11:29,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:11:29,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:11:29,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:11:29,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:11:29,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:11:29,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:11:29,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:11:29,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:11:29,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:11:29,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:11:29,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:11:29,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:11:29,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:11:29,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:11:29,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:11:29,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:11:29,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:11:29,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:11:29,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:11:29,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:11:29,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:11:29,882 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:11:29,882 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:11:29,883 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:11:29,884 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:11:29,884 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:11:29,884 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:11:29,884 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:11:29,885 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:11:29,885 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:11:29,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:11:29,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:11:29,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:11:29,886 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:11:29,886 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:11:29,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:11:29,886 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:11:29,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:11:29,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:11:29,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:11:29,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:11:29,887 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:11:29,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:11:29,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:11:29,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:11:29,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:11:29,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:11:29,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:11:29,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:11:29,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:11:30,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:11:30,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:11:30,217 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:11:30,219 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:11:30,220 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:11:30,220 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product24.cil.c [2019-10-15 03:11:30,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b226973/6ce39fb053eb4c8ebbcf31b19a658dbd/FLAGfd52b1820 [2019-10-15 03:11:30,927 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:11:30,928 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product24.cil.c [2019-10-15 03:11:30,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b226973/6ce39fb053eb4c8ebbcf31b19a658dbd/FLAGfd52b1820 [2019-10-15 03:11:31,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25b226973/6ce39fb053eb4c8ebbcf31b19a658dbd [2019-10-15 03:11:31,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:11:31,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:11:31,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:11:31,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:11:31,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:11:31,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:11:31" (1/1) ... [2019-10-15 03:11:31,197 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 15.10 03:11:31, skipping insertion in model container [2019-10-15 03:11:31,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:11:31" (1/1) ... [2019-10-15 03:11:31,205 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:11:31,288 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:11:32,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:11:32,191 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:11:32,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:11:32,455 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:11:32,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32 WrapperNode [2019-10-15 03:11:32,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:11:32,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:11:32,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:11:32,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:11:32,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (1/1) ... [2019-10-15 03:11:32,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (1/1) ... [2019-10-15 03:11:32,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (1/1) ... [2019-10-15 03:11:32,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (1/1) ... [2019-10-15 03:11:32,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (1/1) ... [2019-10-15 03:11:32,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (1/1) ... [2019-10-15 03:11:32,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (1/1) ... [2019-10-15 03:11:32,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:11:32,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:11:32,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:11:32,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:11:32,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:11:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:11:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:11:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:11:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:11:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:11:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:11:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:11:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:11:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:11:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:11:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:11:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:11:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:11:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:11:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:11:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:11:32,773 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:11:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:11:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:11:32,774 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:11:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:11:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:11:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 03:11:32,775 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:11:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:11:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:11:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:11:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:11:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:11:32,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:11:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:11:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:11:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:11:32,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:11:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:11:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:11:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:11:32,778 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:11:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:11:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:11:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:11:32,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:11:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:11:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:11:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:11:32,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:11:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:11:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:11:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:11:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:11:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:11:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:11:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:11:32,782 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:11:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:11:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:11:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:11:32,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:11:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:11:32,784 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:11:32,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:11:32,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:11:32,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:11:32,785 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:11:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-15 03:11:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-15 03:11:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:11:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:11:32,786 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:11:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:11:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:11:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:11:32,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:11:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:11:32,788 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:11:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:11:32,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:11:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:11:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:11:32,790 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:11:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:11:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:11:32,791 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:11:32,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:11:32,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:11:32,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:11:32,792 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:11:32,793 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:11:32,793 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:11:32,793 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:11:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:11:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:11:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 03:11:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:11:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:11:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:11:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:11:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:11:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 03:11:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 03:11:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:11:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:11:32,795 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:11:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:11:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:11:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:11:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:11:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:11:32,796 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:11:32,797 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:11:32,797 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 03:11:32,797 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 03:11:32,797 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:11:32,797 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 03:11:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:11:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:11:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:11:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:11:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:11:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:11:32,800 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:11:32,800 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:11:32,800 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:11:32,800 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:11:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:11:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:11:32,802 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:11:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:11:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:11:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:11:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:11:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:11:32,804 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:11:32,805 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:11:32,808 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:11:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:11:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:11:32,809 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:11:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:11:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:11:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:11:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:11:32,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:11:32,811 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:11:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:11:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:11:32,818 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:11:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:11:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:11:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:11:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:11:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:11:32,820 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:11:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 03:11:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:11:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:11:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:11:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:11:32,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:11:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:11:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:11:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:11:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:11:32,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:11:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:11:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:11:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:11:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:11:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:11:32,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:11:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:11:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:11:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:11:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:11:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:11:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:11:32,824 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:11:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:11:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:11:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:11:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:11:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:11:32,825 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:11:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:11:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:11:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:11:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:11:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:11:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:11:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:11:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:11:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:11:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:11:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:11:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:11:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:11:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:11:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:11:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:11:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:11:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:11:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:11:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:11:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:11:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:11:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:11:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:11:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:11:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:11:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-15 03:11:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-15 03:11:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:11:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:11:32,830 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:11:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:11:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:11:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:11:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:11:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:11:32,831 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:11:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:11:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:11:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:11:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:11:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:11:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 03:11:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:11:32,832 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:11:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:11:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:11:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:11:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:11:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 03:11:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 03:11:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:11:32,833 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 03:11:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 03:11:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 03:11:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 03:11:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:11:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:11:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:11:32,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:11:37,549 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:11:37,550 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:11:37,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:11:37 BoogieIcfgContainer [2019-10-15 03:11:37,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:11:37,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:11:37,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:11:37,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:11:37,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:11:31" (1/3) ... [2019-10-15 03:11:37,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed95855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:11:37, skipping insertion in model container [2019-10-15 03:11:37,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:11:32" (2/3) ... [2019-10-15 03:11:37,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed95855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:11:37, skipping insertion in model container [2019-10-15 03:11:37,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:11:37" (3/3) ... [2019-10-15 03:11:37,559 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product24.cil.c [2019-10-15 03:11:37,569 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:11:37,579 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:11:37,591 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:11:37,620 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:11:37,621 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:11:37,621 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:11:37,621 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:11:37,621 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:11:37,621 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:11:37,621 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:11:37,622 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:11:37,650 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states. [2019-10-15 03:11:37,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:11:37,667 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:37,669 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:37,671 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:37,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1522807433, now seen corresponding path program 1 times [2019-10-15 03:11:37,687 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:37,687 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27585895] [2019-10-15 03:11:37,688 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:37,688 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:37,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:38,378 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:38,379 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27585895] [2019-10-15 03:11:38,380 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:38,380 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:11:38,381 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068534047] [2019-10-15 03:11:38,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:11:38,389 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:38,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:11:38,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:11:38,405 INFO L87 Difference]: Start difference. First operand 380 states. Second operand 2 states. [2019-10-15 03:11:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:38,466 INFO L93 Difference]: Finished difference Result 561 states and 656 transitions. [2019-10-15 03:11:38,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:11:38,468 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 146 [2019-10-15 03:11:38,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:38,488 INFO L225 Difference]: With dead ends: 561 [2019-10-15 03:11:38,489 INFO L226 Difference]: Without dead ends: 359 [2019-10-15 03:11:38,495 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:11:38,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-10-15 03:11:38,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2019-10-15 03:11:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2019-10-15 03:11:38,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 418 transitions. [2019-10-15 03:11:38,591 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 418 transitions. Word has length 146 [2019-10-15 03:11:38,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:38,594 INFO L462 AbstractCegarLoop]: Abstraction has 359 states and 418 transitions. [2019-10-15 03:11:38,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:11:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 418 transitions. [2019-10-15 03:11:38,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-10-15 03:11:38,607 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:38,607 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:38,608 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:38,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:38,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1804720397, now seen corresponding path program 1 times [2019-10-15 03:11:38,608 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:38,609 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869146460] [2019-10-15 03:11:38,609 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:38,609 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:38,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:38,910 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:38,911 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869146460] [2019-10-15 03:11:38,911 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:38,911 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:11:38,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330770155] [2019-10-15 03:11:38,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:11:38,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:38,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:11:38,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:38,918 INFO L87 Difference]: Start difference. First operand 359 states and 418 transitions. Second operand 3 states. [2019-10-15 03:11:39,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:39,004 INFO L93 Difference]: Finished difference Result 546 states and 624 transitions. [2019-10-15 03:11:39,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:11:39,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2019-10-15 03:11:39,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:39,018 INFO L225 Difference]: With dead ends: 546 [2019-10-15 03:11:39,018 INFO L226 Difference]: Without dead ends: 361 [2019-10-15 03:11:39,022 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:39,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2019-10-15 03:11:39,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2019-10-15 03:11:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2019-10-15 03:11:39,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 420 transitions. [2019-10-15 03:11:39,084 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 420 transitions. Word has length 147 [2019-10-15 03:11:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:39,084 INFO L462 AbstractCegarLoop]: Abstraction has 361 states and 420 transitions. [2019-10-15 03:11:39,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:11:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 420 transitions. [2019-10-15 03:11:39,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 03:11:39,089 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:39,089 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:39,090 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:39,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:39,090 INFO L82 PathProgramCache]: Analyzing trace with hash 535367124, now seen corresponding path program 1 times [2019-10-15 03:11:39,090 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:39,090 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11891505] [2019-10-15 03:11:39,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:39,091 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:39,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:39,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:39,308 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11891505] [2019-10-15 03:11:39,308 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:11:39,308 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:11:39,308 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683944792] [2019-10-15 03:11:39,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:11:39,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:11:39,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:11:39,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:39,311 INFO L87 Difference]: Start difference. First operand 361 states and 420 transitions. Second operand 3 states. [2019-10-15 03:11:39,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:11:39,371 INFO L93 Difference]: Finished difference Result 706 states and 850 transitions. [2019-10-15 03:11:39,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:11:39,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-15 03:11:39,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:11:39,378 INFO L225 Difference]: With dead ends: 706 [2019-10-15 03:11:39,378 INFO L226 Difference]: Without dead ends: 403 [2019-10-15 03:11:39,384 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:11:39,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-15 03:11:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 402. [2019-10-15 03:11:39,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2019-10-15 03:11:39,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 491 transitions. [2019-10-15 03:11:39,418 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 491 transitions. Word has length 159 [2019-10-15 03:11:39,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:11:39,420 INFO L462 AbstractCegarLoop]: Abstraction has 402 states and 491 transitions. [2019-10-15 03:11:39,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:11:39,420 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 491 transitions. [2019-10-15 03:11:39,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:11:39,431 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:11:39,432 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:11:39,433 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:11:39,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:11:39,434 INFO L82 PathProgramCache]: Analyzing trace with hash -626629770, now seen corresponding path program 1 times [2019-10-15 03:11:39,434 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:11:39,434 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502449598] [2019-10-15 03:11:39,434 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:39,434 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:11:39,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:11:39,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 03:11:39,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502449598] [2019-10-15 03:11:39,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082127568] [2019-10-15 03:11:39,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:11:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:11:40,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:11:40,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:11:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:40,397 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:11:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-15 03:11:40,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2048813234] [2019-10-15 03:11:40,741 INFO L162 IcfgInterpreter]: Started Sifa with 147 locations of interest [2019-10-15 03:11:40,742 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:11:40,754 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:11:40,761 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:11:40,761 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs