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_spec8_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:12:46,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:12:46,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:12:46,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:12:46,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:12:46,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:12:46,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:12:46,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:12:46,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:12:46,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:12:46,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:12:46,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:12:46,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:12:46,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:12:46,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:12:46,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:12:46,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:12:46,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:12:46,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:12:46,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:12:46,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:12:46,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:12:46,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:12:46,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:12:46,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:12:46,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:12:46,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:12:46,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:12:46,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:12:46,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:12:46,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:12:46,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:12:46,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:12:46,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:12:46,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:12:46,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:12:46,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:12:46,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:12:46,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:12:46,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:12:46,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:12:46,914 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 23:12:46,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:12:46,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:12:46,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:12:46,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:12:46,933 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:12:46,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:12:46,933 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:12:46,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:12:46,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:12:46,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:12:46,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:12:46,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:12:46,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:12:46,935 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:12:46,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:12:46,935 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:12:46,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:12:46,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:12:46,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:12:46,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:12:46,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:12:46,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:12:46,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:12:46,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:12:46,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:12:46,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:12:46,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:12:46,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:12:46,938 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 23:12:47,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:12:47,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:12:47,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:12:47,225 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:12:47,225 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:12:47,226 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product33.cil.c [2019-10-13 23:12:47,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a4892c3/9311b244a1e24817a59a27d4f83fe1b1/FLAGdbe221c7e [2019-10-13 23:12:47,994 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:12:47,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product33.cil.c [2019-10-13 23:12:48,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a4892c3/9311b244a1e24817a59a27d4f83fe1b1/FLAGdbe221c7e [2019-10-13 23:12:48,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79a4892c3/9311b244a1e24817a59a27d4f83fe1b1 [2019-10-13 23:12:48,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:12:48,184 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:12:48,190 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:48,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:12:48,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:12:48,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:48" (1/1) ... [2019-10-13 23:12:48,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3549df8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:48, skipping insertion in model container [2019-10-13 23:12:48,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:12:48" (1/1) ... [2019-10-13 23:12:48,210 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:12:48,298 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:12:49,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:49,063 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:12:49,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:12:49,310 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:12:49,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49 WrapperNode [2019-10-13 23:12:49,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:12:49,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:12:49,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:12:49,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:12:49,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (1/1) ... [2019-10-13 23:12:49,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:12:49,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:12:49,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:12:49,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:12:49,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (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 23:12:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:12:49,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:12:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:49,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:12:49,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:12:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:12:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:12:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:12:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:12:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:12:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:12:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:12:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:12:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:12:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:12:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:12:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:12:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:12:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:12:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:12:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:12:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:12:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:12:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:12:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:12:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:12:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:12:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:12:49,646 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:12:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:12:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:12:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:12:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:12:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:12:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:12:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:12:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:12:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:12:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-13 23:12:49,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 23:12:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:12:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:12:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:12:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:12:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:12:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:49,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:12:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:12:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:12:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:12:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:49,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:12:49,651 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:12:49,651 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:12:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:12:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:12:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:12:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:12:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:12:49,652 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:12:49,653 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:12:49,653 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:12:49,653 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:12:49,653 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:12:49,653 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:12:49,654 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-13 23:12:49,654 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 23:12:49,654 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:12:49,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:12:49,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:12:49,655 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:12:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:12:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:12:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:12:49,656 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:12:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:12:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 23:12:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:12:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:12:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:12:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:12:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:12:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:12:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:12:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:12:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:12:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:12:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-13 23:12:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:12:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 23:12:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:12:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:12:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:12:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:12:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:12:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:12:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:12:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:12:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:12:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:12:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:12:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:12:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:12:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:12:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:12:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:12:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:12:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:12:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:12:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:12:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:12:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:12:49,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:12:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:12:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:12:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:12:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:12:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:12:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:12:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:12:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:12:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:12:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:12:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:12:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:12:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:12:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:12:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:12:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:12:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:12:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:12:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:12:49,674 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:12:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:12:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:12:49,675 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:12:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:12:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:12:49,683 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:12:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:12:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:12:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:12:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:12:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:12:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:12:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:12:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:12:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:12:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:12:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:12:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:12:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:12:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:12:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:12:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:12:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:12:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:12:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:12:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:12:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:12:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:12:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:12:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:12:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:12:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:12:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:12:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:12:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:12:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:12:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:12:49,689 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:12:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:12:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:12:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:12:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:12:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:12:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:12:49,690 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:12:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-13 23:12:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 23:12:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:12:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:12:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 23:12:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 23:12:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:12:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-13 23:12:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:12:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:12:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:12:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 23:12:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:12:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:12:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:12:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:12:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:12:49,693 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:12:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:12:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:12:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:12:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:12:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:12:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:12:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:12:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:12:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:12:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:12:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:12:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:12:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:12:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:12:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:12:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:12:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:12:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:12:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:12:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:12:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:12:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:12:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:12:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:12:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:12:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:12:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:12:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:12:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:12:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:12:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:12:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-13 23:12:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:12:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 23:12:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:12:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:12:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-13 23:12:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 23:12:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:12:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 23:12:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:12:49,700 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:12:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:12:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:12:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:12:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:12:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:12:49,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:12:49,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:12:49,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:12:54,191 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:12:54,191 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:12:54,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:54 BoogieIcfgContainer [2019-10-13 23:12:54,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:12:54,195 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:12:54,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:12:54,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:12:54,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:12:48" (1/3) ... [2019-10-13 23:12:54,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e114764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:54, skipping insertion in model container [2019-10-13 23:12:54,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:12:49" (2/3) ... [2019-10-13 23:12:54,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e114764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:12:54, skipping insertion in model container [2019-10-13 23:12:54,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:12:54" (3/3) ... [2019-10-13 23:12:54,202 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product33.cil.c [2019-10-13 23:12:54,213 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:12:54,222 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:12:54,234 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:12:54,265 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:12:54,266 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:12:54,266 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:12:54,266 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:12:54,266 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:12:54,266 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:12:54,266 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:12:54,267 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:12:54,298 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states. [2019-10-13 23:12:54,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-13 23:12:54,316 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:54,317 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:54,319 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:54,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:54,325 INFO L82 PathProgramCache]: Analyzing trace with hash 813208465, now seen corresponding path program 1 times [2019-10-13 23:12:54,336 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:54,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694150118] [2019-10-13 23:12:54,336 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,337 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:54,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:55,017 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694150118] [2019-10-13 23:12:55,018 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:55,018 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:12:55,019 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666145393] [2019-10-13 23:12:55,025 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:12:55,026 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:55,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:12:55,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:12:55,043 INFO L87 Difference]: Start difference. First operand 437 states. Second operand 2 states. [2019-10-13 23:12:55,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:55,124 INFO L93 Difference]: Finished difference Result 675 states and 799 transitions. [2019-10-13 23:12:55,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:12:55,125 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 125 [2019-10-13 23:12:55,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:55,147 INFO L225 Difference]: With dead ends: 675 [2019-10-13 23:12:55,147 INFO L226 Difference]: Without dead ends: 416 [2019-10-13 23:12:55,153 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 23:12:55,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-10-13 23:12:55,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2019-10-13 23:12:55,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2019-10-13 23:12:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 491 transitions. [2019-10-13 23:12:55,260 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 491 transitions. Word has length 125 [2019-10-13 23:12:55,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:55,264 INFO L462 AbstractCegarLoop]: Abstraction has 416 states and 491 transitions. [2019-10-13 23:12:55,265 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:12:55,265 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 491 transitions. [2019-10-13 23:12:55,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-13 23:12:55,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:55,275 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:12:55,276 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:55,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:55,276 INFO L82 PathProgramCache]: Analyzing trace with hash -231976617, now seen corresponding path program 1 times [2019-10-13 23:12:55,277 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:55,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115866045] [2019-10-13 23:12:55,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:55,523 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:55,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115866045] [2019-10-13 23:12:55,524 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:55,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:55,524 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901620620] [2019-10-13 23:12:55,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:55,528 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:55,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:55,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:55,528 INFO L87 Difference]: Start difference. First operand 416 states and 491 transitions. Second operand 3 states. [2019-10-13 23:12:55,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:55,607 INFO L93 Difference]: Finished difference Result 660 states and 770 transitions. [2019-10-13 23:12:55,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:55,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-10-13 23:12:55,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:55,621 INFO L225 Difference]: With dead ends: 660 [2019-10-13 23:12:55,622 INFO L226 Difference]: Without dead ends: 418 [2019-10-13 23:12:55,629 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 23:12:55,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2019-10-13 23:12:55,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2019-10-13 23:12:55,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-13 23:12:55,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 493 transitions. [2019-10-13 23:12:55,667 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 493 transitions. Word has length 126 [2019-10-13 23:12:55,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:55,668 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 493 transitions. [2019-10-13 23:12:55,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:55,668 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 493 transitions. [2019-10-13 23:12:55,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-13 23:12:55,673 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:55,673 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] [2019-10-13 23:12:55,674 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:55,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:55,674 INFO L82 PathProgramCache]: Analyzing trace with hash 921275503, now seen corresponding path program 1 times [2019-10-13 23:12:55,674 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:55,675 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317781288] [2019-10-13 23:12:55,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,675 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:55,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:12:56,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317781288] [2019-10-13 23:12:56,016 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:56,016 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:56,016 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242836833] [2019-10-13 23:12:56,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:56,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:56,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:56,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:56,017 INFO L87 Difference]: Start difference. First operand 418 states and 493 transitions. Second operand 3 states. [2019-10-13 23:12:56,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:56,078 INFO L93 Difference]: Finished difference Result 820 states and 996 transitions. [2019-10-13 23:12:56,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:56,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2019-10-13 23:12:56,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:56,089 INFO L225 Difference]: With dead ends: 820 [2019-10-13 23:12:56,089 INFO L226 Difference]: Without dead ends: 460 [2019-10-13 23:12:56,092 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 23:12:56,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2019-10-13 23:12:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 459. [2019-10-13 23:12:56,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-10-13 23:12:56,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 564 transitions. [2019-10-13 23:12:56,160 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 564 transitions. Word has length 138 [2019-10-13 23:12:56,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:56,162 INFO L462 AbstractCegarLoop]: Abstraction has 459 states and 564 transitions. [2019-10-13 23:12:56,162 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:56,162 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 564 transitions. [2019-10-13 23:12:56,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-10-13 23:12:56,173 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:56,173 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] [2019-10-13 23:12:56,174 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:56,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:56,177 INFO L82 PathProgramCache]: Analyzing trace with hash 141709140, now seen corresponding path program 1 times [2019-10-13 23:12:56,177 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:56,177 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517661420] [2019-10-13 23:12:56,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:56,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:56,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:12:56,486 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517661420] [2019-10-13 23:12:56,486 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:12:56,487 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:12:56,487 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647138984] [2019-10-13 23:12:56,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:12:56,488 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:12:56,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:12:56,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:56,488 INFO L87 Difference]: Start difference. First operand 459 states and 564 transitions. Second operand 3 states. [2019-10-13 23:12:56,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:12:56,558 INFO L93 Difference]: Finished difference Result 751 states and 901 transitions. [2019-10-13 23:12:56,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:12:56,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2019-10-13 23:12:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:12:56,563 INFO L225 Difference]: With dead ends: 751 [2019-10-13 23:12:56,563 INFO L226 Difference]: Without dead ends: 510 [2019-10-13 23:12:56,564 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:12:56,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2019-10-13 23:12:56,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2019-10-13 23:12:56,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2019-10-13 23:12:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 614 transitions. [2019-10-13 23:12:56,591 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 614 transitions. Word has length 139 [2019-10-13 23:12:56,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:12:56,592 INFO L462 AbstractCegarLoop]: Abstraction has 510 states and 614 transitions. [2019-10-13 23:12:56,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:12:56,592 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 614 transitions. [2019-10-13 23:12:56,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2019-10-13 23:12:56,597 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:12:56,598 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:12:56,598 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:12:56,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:12:56,598 INFO L82 PathProgramCache]: Analyzing trace with hash -853591963, now seen corresponding path program 1 times [2019-10-13 23:12:56,599 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:12:56,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908986448] [2019-10-13 23:12:56,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:56,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:12:56,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:12:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:12:57,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908986448] [2019-10-13 23:12:57,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948752881] [2019-10-13 23:12:57,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:12:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:12:58,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 3467 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:12:58,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:12:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-13 23:12:58,495 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:12:59,186 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 23:12:59,187 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1388127794] [2019-10-13 23:12:59,220 INFO L162 IcfgInterpreter]: Started Sifa with 211 locations of interest [2019-10-13 23:12:59,220 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:12:59,228 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:12:59,237 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:12:59,237 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs