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_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:09:48,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:09:48,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:09:48,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:09:48,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:09:48,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:09:48,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:09:48,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:09:48,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:09:48,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:09:48,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:09:48,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:09:48,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:09:48,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:09:48,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:09:48,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:09:48,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:09:48,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:09:48,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:09:48,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:09:48,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:09:48,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:09:48,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:09:48,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:09:48,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:09:48,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:09:48,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:09:48,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:09:48,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:09:48,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:09:48,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:09:48,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:09:48,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:09:48,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:09:48,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:09:48,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:09:48,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:09:48,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:09:48,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:09:48,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:09:48,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:09:48,363 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 23:09:48,380 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:09:48,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:09:48,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:09:48,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:09:48,382 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:09:48,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:09:48,383 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:09:48,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:09:48,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:09:48,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:09:48,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:09:48,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:09:48,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:09:48,384 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:09:48,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:09:48,385 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:09:48,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:09:48,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:09:48,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:09:48,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:09:48,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:09:48,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:09:48,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:09:48,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:09:48,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:09:48,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:09:48,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:09:48,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:09:48,387 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 23:09:48,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:09:48,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:09:48,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:09:48,691 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:09:48,691 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:09:48,692 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c [2019-10-13 23:09:48,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa660cb4/3e2962c6460b4deba9c555118a3fb3bc/FLAG5e5b59a56 [2019-10-13 23:09:49,388 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:09:49,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product28.cil.c [2019-10-13 23:09:49,423 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa660cb4/3e2962c6460b4deba9c555118a3fb3bc/FLAG5e5b59a56 [2019-10-13 23:09:49,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa660cb4/3e2962c6460b4deba9c555118a3fb3bc [2019-10-13 23:09:49,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:09:49,607 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:09:49,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:49,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:09:49,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:09:49,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:49" (1/1) ... [2019-10-13 23:09:49,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3781e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:49, skipping insertion in model container [2019-10-13 23:09:49,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:09:49" (1/1) ... [2019-10-13 23:09:49,624 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:09:49,704 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:09:50,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:50,452 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:09:50,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:09:50,704 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:09:50,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50 WrapperNode [2019-10-13 23:09:50,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:09:50,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:09:50,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:09:50,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:09:50,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (1/1) ... [2019-10-13 23:09:50,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:09:50,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:09:50,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:09:50,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:09:50,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (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 23:09:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:09:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:09:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 23:09:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 23:09:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 23:09:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 23:09:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 23:09:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 23:09:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 23:09:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 23:09:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:09:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:51,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:09:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:09:51,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:09:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 23:09:51,024 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 23:09:51,025 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 23:09:51,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 23:09:51,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 23:09:51,026 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 23:09:51,026 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 23:09:51,027 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 23:09:51,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 23:09:51,027 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 23:09:51,027 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 23:09:51,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 23:09:51,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 23:09:51,028 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 23:09:51,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 23:09:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 23:09:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 23:09:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 23:09:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 23:09:51,029 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 23:09:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 23:09:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 23:09:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 23:09:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 23:09:51,030 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 23:09:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 23:09:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 23:09:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 23:09:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 23:09:51,031 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 23:09:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 23:09:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 23:09:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 23:09:51,032 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 23:09:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 23:09:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:09:51,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:09:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 23:09:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 23:09:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 23:09:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 23:09:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 23:09:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 23:09:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 23:09:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 23:09:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 23:09:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 23:09:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 23:09:51,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 23:09:51,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 23:09:51,037 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 23:09:51,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 23:09:51,040 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 23:09:51,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 23:09:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 23:09:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 23:09:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 23:09:51,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 23:09:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 23:09:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 23:09:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 23:09:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 23:09:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 23:09:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 23:09:51,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 23:09:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 23:09:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 23:09:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:09:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 23:09:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:09:51,045 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:09:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:09:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:09:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 23:09:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 23:09:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 23:09:51,046 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 23:09:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 23:09:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 23:09:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 23:09:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 23:09:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 23:09:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 23:09:51,047 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 23:09:51,048 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 23:09:51,048 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 23:09:51,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 23:09:51,048 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 23:09:51,048 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 23:09:51,048 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 23:09:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:09:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:09:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:09:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 23:09:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 23:09:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 23:09:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 23:09:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 23:09:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 23:09:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 23:09:51,052 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 23:09:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 23:09:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 23:09:51,054 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 23:09:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 23:09:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 23:09:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 23:09:51,055 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 23:09:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:09:51,056 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 23:09:51,057 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 23:09:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 23:09:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:09:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 23:09:51,061 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 23:09:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 23:09:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-13 23:09:51,062 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-13 23:09:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:09:51,063 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:09:51,064 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:09:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:09:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:09:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:09:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:09:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:09:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:09:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:09:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:09:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:09:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:09:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:09:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:09:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:09:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 23:09:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 23:09:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 23:09:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 23:09:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 23:09:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 23:09:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 23:09:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 23:09:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:09:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:09:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:09:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 23:09:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 23:09:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 23:09:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 23:09:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 23:09:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 23:09:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 23:09:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 23:09:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 23:09:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 23:09:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 23:09:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 23:09:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 23:09:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 23:09:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 23:09:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:09:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:09:55,751 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:09:55,751 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 23:09:55,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:55 BoogieIcfgContainer [2019-10-13 23:09:55,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:09:55,755 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:09:55,755 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:09:55,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:09:55,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:09:49" (1/3) ... [2019-10-13 23:09:55,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9f9e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:55, skipping insertion in model container [2019-10-13 23:09:55,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:09:50" (2/3) ... [2019-10-13 23:09:55,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9f9e63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:09:55, skipping insertion in model container [2019-10-13 23:09:55,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:09:55" (3/3) ... [2019-10-13 23:09:55,761 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product28.cil.c [2019-10-13 23:09:55,771 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:09:55,780 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:09:55,791 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:09:55,821 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:09:55,821 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:09:55,821 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:09:55,821 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:09:55,821 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:09:55,821 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:09:55,822 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:09:55,822 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:09:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states. [2019-10-13 23:09:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-13 23:09:55,872 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:55,873 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:55,875 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:55,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:55,881 INFO L82 PathProgramCache]: Analyzing trace with hash 632998782, now seen corresponding path program 1 times [2019-10-13 23:09:55,894 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:55,894 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488764851] [2019-10-13 23:09:55,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:55,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:55,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:56,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488764851] [2019-10-13 23:09:56,471 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:56,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:09:56,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740310791] [2019-10-13 23:09:56,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:09:56,477 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:56,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:09:56,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:09:56,495 INFO L87 Difference]: Start difference. First operand 384 states. Second operand 2 states. [2019-10-13 23:09:56,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:56,564 INFO L93 Difference]: Finished difference Result 541 states and 652 transitions. [2019-10-13 23:09:56,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:09:56,566 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 152 [2019-10-13 23:09:56,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:56,587 INFO L225 Difference]: With dead ends: 541 [2019-10-13 23:09:56,587 INFO L226 Difference]: Without dead ends: 342 [2019-10-13 23:09:56,594 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 23:09:56,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2019-10-13 23:09:56,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2019-10-13 23:09:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2019-10-13 23:09:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 408 transitions. [2019-10-13 23:09:56,732 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 408 transitions. Word has length 152 [2019-10-13 23:09:56,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:56,734 INFO L462 AbstractCegarLoop]: Abstraction has 342 states and 408 transitions. [2019-10-13 23:09:56,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:09:56,734 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 408 transitions. [2019-10-13 23:09:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-13 23:09:56,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:56,748 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:09:56,748 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:56,749 INFO L82 PathProgramCache]: Analyzing trace with hash 219187617, now seen corresponding path program 1 times [2019-10-13 23:09:56,749 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:56,749 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708910134] [2019-10-13 23:09:56,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:56,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:56,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:56,995 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:56,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708910134] [2019-10-13 23:09:56,996 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:56,996 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:56,996 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416750104] [2019-10-13 23:09:56,999 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:57,000 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:57,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:57,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:57,000 INFO L87 Difference]: Start difference. First operand 342 states and 408 transitions. Second operand 3 states. [2019-10-13 23:09:57,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:57,100 INFO L93 Difference]: Finished difference Result 526 states and 618 transitions. [2019-10-13 23:09:57,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:57,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-10-13 23:09:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:57,110 INFO L225 Difference]: With dead ends: 526 [2019-10-13 23:09:57,110 INFO L226 Difference]: Without dead ends: 344 [2019-10-13 23:09:57,112 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 23:09:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2019-10-13 23:09:57,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2019-10-13 23:09:57,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2019-10-13 23:09:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 410 transitions. [2019-10-13 23:09:57,132 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 410 transitions. Word has length 153 [2019-10-13 23:09:57,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:57,133 INFO L462 AbstractCegarLoop]: Abstraction has 344 states and 410 transitions. [2019-10-13 23:09:57,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 410 transitions. [2019-10-13 23:09:57,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 23:09:57,136 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:57,136 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:57,136 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:57,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1732661246, now seen corresponding path program 1 times [2019-10-13 23:09:57,137 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:57,137 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378250762] [2019-10-13 23:09:57,137 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,138 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:57,297 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:09:57,297 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378250762] [2019-10-13 23:09:57,298 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:57,298 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:09:57,298 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63908747] [2019-10-13 23:09:57,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:09:57,300 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:57,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:09:57,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:09:57,301 INFO L87 Difference]: Start difference. First operand 344 states and 410 transitions. Second operand 3 states. [2019-10-13 23:09:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:09:57,346 INFO L93 Difference]: Finished difference Result 668 states and 824 transitions. [2019-10-13 23:09:57,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:09:57,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-13 23:09:57,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:09:57,352 INFO L225 Difference]: With dead ends: 668 [2019-10-13 23:09:57,352 INFO L226 Difference]: Without dead ends: 382 [2019-10-13 23:09:57,356 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 23:09:57,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-10-13 23:09:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2019-10-13 23:09:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2019-10-13 23:09:57,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 475 transitions. [2019-10-13 23:09:57,400 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 475 transitions. Word has length 158 [2019-10-13 23:09:57,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:09:57,401 INFO L462 AbstractCegarLoop]: Abstraction has 381 states and 475 transitions. [2019-10-13 23:09:57,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:09:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 475 transitions. [2019-10-13 23:09:57,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 23:09:57,404 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:09:57,404 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:09:57,404 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:09:57,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:09:57,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1791054390, now seen corresponding path program 1 times [2019-10-13 23:09:57,405 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:09:57,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300271910] [2019-10-13 23:09:57,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,406 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:09:57,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:09:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:09:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2019-10-13 23:09:58,218 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300271910] [2019-10-13 23:09:58,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:09:58,219 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-10-13 23:09:58,222 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299463023] [2019-10-13 23:09:58,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-10-13 23:09:58,227 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:09:58,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-10-13 23:09:58,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=538, Unknown=0, NotChecked=0, Total=600 [2019-10-13 23:09:58,229 INFO L87 Difference]: Start difference. First operand 381 states and 475 transitions. Second operand 25 states. [2019-10-13 23:10:11,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:10:11,306 INFO L93 Difference]: Finished difference Result 975 states and 1167 transitions. [2019-10-13 23:10:11,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-10-13 23:10:11,307 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 159 [2019-10-13 23:10:11,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:10:11,313 INFO L225 Difference]: With dead ends: 975 [2019-10-13 23:10:11,313 INFO L226 Difference]: Without dead ends: 741 [2019-10-13 23:10:11,315 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=381, Invalid=2811, Unknown=0, NotChecked=0, Total=3192 [2019-10-13 23:10:11,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2019-10-13 23:10:11,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 731. [2019-10-13 23:10:11,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2019-10-13 23:10:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 870 transitions. [2019-10-13 23:10:11,366 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 870 transitions. Word has length 159 [2019-10-13 23:10:11,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:10:11,367 INFO L462 AbstractCegarLoop]: Abstraction has 731 states and 870 transitions. [2019-10-13 23:10:11,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-10-13 23:10:11,367 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 870 transitions. [2019-10-13 23:10:11,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 23:10:11,370 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:10:11,370 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-13 23:10:11,371 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:10:11,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:10:11,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1078515411, now seen corresponding path program 1 times [2019-10-13 23:10:11,371 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:10:11,371 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966988441] [2019-10-13 23:10:11,372 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:11,372 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:10:11,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:10:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:13,563 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:10:13,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966988441] [2019-10-13 23:10:13,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735128304] [2019-10-13 23:10:13,564 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 23:10:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:10:14,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 2644 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 23:10:14,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:10:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:10:14,342 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:10:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-13 23:10:14,667 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1609016470] [2019-10-13 23:10:14,700 INFO L162 IcfgInterpreter]: Started Sifa with 148 locations of interest [2019-10-13 23:10:14,700 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:10:14,708 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:10:14,717 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:10:14,718 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs