java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:10:30,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:10:30,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:10:30,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:10:30,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:10:30,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:10:30,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:10:30,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:10:30,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:10:30,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:10:30,935 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:10:30,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:10:30,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:10:30,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:10:30,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:10:30,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:10:30,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:10:30,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:10:30,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:10:30,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:10:30,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:10:30,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:10:30,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:10:30,957 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:10:30,962 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:10:30,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:10:30,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:10:30,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:10:30,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:10:30,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:10:30,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:10:30,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:10:30,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:10:30,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:10:30,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:10:30,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:10:30,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:10:30,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:10:30,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:10:30,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:10:30,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:10:30,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:10:31,012 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:10:31,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:10:31,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:10:31,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:10:31,015 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:10:31,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:10:31,015 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:10:31,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:10:31,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:10:31,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:10:31,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:10:31,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:10:31,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:10:31,018 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:10:31,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:10:31,018 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:10:31,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:10:31,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:10:31,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:10:31,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:10:31,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:10:31,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:10:31,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:10:31,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:10:31,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:10:31,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:10:31,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:10:31,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:10:31,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:10:31,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:10:31,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:10:31,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:10:31,421 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:10:31,422 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:10:31,423 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-10-15 03:10:31,534 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7643bce1/83a08a2a364e41848e40345cd7a49bd1/FLAGc8c85fb4c [2019-10-15 03:10:32,344 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:10:32,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-10-15 03:10:32,378 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7643bce1/83a08a2a364e41848e40345cd7a49bd1/FLAGc8c85fb4c [2019-10-15 03:10:32,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7643bce1/83a08a2a364e41848e40345cd7a49bd1 [2019-10-15 03:10:32,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:10:32,461 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:10:32,462 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:10:32,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:10:32,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:10:32,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:10:32" (1/1) ... [2019-10-15 03:10:32,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee255a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:32, skipping insertion in model container [2019-10-15 03:10:32,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:10:32" (1/1) ... [2019-10-15 03:10:32,478 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:10:32,583 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:10:33,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:10:33,690 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:10:33,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:10:33,979 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:10:33,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33 WrapperNode [2019-10-15 03:10:33,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:10:33,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:10:33,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:10:33,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:10:34,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (1/1) ... [2019-10-15 03:10:34,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (1/1) ... [2019-10-15 03:10:34,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (1/1) ... [2019-10-15 03:10:34,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (1/1) ... [2019-10-15 03:10:34,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (1/1) ... [2019-10-15 03:10:34,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (1/1) ... [2019-10-15 03:10:34,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (1/1) ... [2019-10-15 03:10:34,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:10:34,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:10:34,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:10:34,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:10:34,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:10:34,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:10:34,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:10:34,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:10:34,319 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:10:34,319 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:10:34,319 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:10:34,320 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:10:34,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 03:10:34,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 03:10:34,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 03:10:34,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 03:10:34,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 03:10:34,321 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 03:10:34,321 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 03:10:34,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 03:10:34,322 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:10:34,322 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:10:34,322 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 03:10:34,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 03:10:34,323 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 03:10:34,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 03:10:34,324 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 03:10:34,324 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 03:10:34,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 03:10:34,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 03:10:34,325 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 03:10:34,325 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-15 03:10:34,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:10:34,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 03:10:34,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 03:10:34,325 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 03:10:34,326 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 03:10:34,326 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 03:10:34,326 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 03:10:34,326 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:10:34,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:10:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:10:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:10:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:10:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:10:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:10:34,327 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 03:10:34,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 03:10:34,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 03:10:34,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 03:10:34,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 03:10:34,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 03:10:34,328 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 03:10:34,329 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 03:10:34,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 03:10:34,329 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 03:10:34,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 03:10:34,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 03:10:34,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 03:10:34,330 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 03:10:34,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 03:10:34,330 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 03:10:34,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 03:10:34,330 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 03:10:34,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 03:10:34,331 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 03:10:34,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 03:10:34,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 03:10:34,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 03:10:34,332 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 03:10:34,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 03:10:34,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 03:10:34,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 03:10:34,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 03:10:34,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 03:10:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 03:10:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 03:10:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 03:10:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 03:10:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 03:10:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 03:10:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 03:10:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 03:10:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 03:10:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 03:10:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 03:10:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 03:10:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 03:10:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 03:10:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 03:10:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 03:10:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 03:10:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 03:10:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 03:10:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 03:10:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 03:10:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 03:10:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 03:10:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 03:10:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 03:10:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 03:10:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 03:10:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 03:10:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-15 03:10:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 03:10:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 03:10:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 03:10:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 03:10:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 03:10:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 03:10:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 03:10:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 03:10:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 03:10:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-15 03:10:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:10:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:10:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:10:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:10:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:10:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:10:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:10:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 03:10:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 03:10:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 03:10:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 03:10:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 03:10:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 03:10:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 03:10:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 03:10:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 03:10:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 03:10:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 03:10:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 03:10:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 03:10:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 03:10:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 03:10:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 03:10:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 03:10:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 03:10:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 03:10:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 03:10:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:10:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:10:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:10:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 03:10:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 03:10:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 03:10:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 03:10:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 03:10:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 03:10:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 03:10:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 03:10:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 03:10:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-15 03:10:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 03:10:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 03:10:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 03:10:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:10:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:10:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 03:10:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 03:10:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 03:10:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 03:10:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 03:10:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 03:10:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 03:10:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 03:10:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 03:10:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 03:10:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 03:10:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 03:10:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 03:10:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:10:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:10:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:10:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:10:34,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:10:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:10:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:10:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:10:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:10:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:10:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:10:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:10:34,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:10:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:10:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:10:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:10:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 03:10:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 03:10:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 03:10:34,350 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 03:10:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 03:10:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 03:10:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 03:10:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 03:10:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 03:10:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 03:10:34,351 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 03:10:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 03:10:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 03:10:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 03:10:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 03:10:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 03:10:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 03:10:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 03:10:34,352 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 03:10:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 03:10:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 03:10:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 03:10:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 03:10:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 03:10:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 03:10:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 03:10:34,353 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 03:10:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 03:10:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 03:10:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 03:10:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 03:10:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 03:10:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 03:10:34,354 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 03:10:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 03:10:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-15 03:10:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 03:10:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 03:10:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 03:10:34,355 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 03:10:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 03:10:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 03:10:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 03:10:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-15 03:10:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 03:10:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 03:10:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-15 03:10:34,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:10:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:10:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:10:39,353 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:10:39,353 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 03:10:39,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:10:39 BoogieIcfgContainer [2019-10-15 03:10:39,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:10:39,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:10:39,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:10:39,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:10:39,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:10:32" (1/3) ... [2019-10-15 03:10:39,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c866530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:10:39, skipping insertion in model container [2019-10-15 03:10:39,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:10:33" (2/3) ... [2019-10-15 03:10:39,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c866530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:10:39, skipping insertion in model container [2019-10-15 03:10:39,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:10:39" (3/3) ... [2019-10-15 03:10:39,367 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2019-10-15 03:10:39,377 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:10:39,388 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:10:39,400 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:10:39,444 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:10:39,444 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:10:39,444 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:10:39,444 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:10:39,445 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:10:39,445 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:10:39,445 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:10:39,445 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:10:39,485 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2019-10-15 03:10:39,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 03:10:39,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:39,512 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:39,514 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:39,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:39,521 INFO L82 PathProgramCache]: Analyzing trace with hash 297708162, now seen corresponding path program 1 times [2019-10-15 03:10:39,531 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:39,531 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915998925] [2019-10-15 03:10:39,531 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:39,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:39,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:40,244 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:40,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915998925] [2019-10-15 03:10:40,245 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:40,246 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:10:40,246 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761577447] [2019-10-15 03:10:40,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:10:40,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:40,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:10:40,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:10:40,270 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 2 states. [2019-10-15 03:10:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:40,356 INFO L93 Difference]: Finished difference Result 498 states and 588 transitions. [2019-10-15 03:10:40,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:10:40,357 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 149 [2019-10-15 03:10:40,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:40,376 INFO L225 Difference]: With dead ends: 498 [2019-10-15 03:10:40,376 INFO L226 Difference]: Without dead ends: 324 [2019-10-15 03:10:40,382 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:10:40,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2019-10-15 03:10:40,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2019-10-15 03:10:40,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2019-10-15 03:10:40,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 381 transitions. [2019-10-15 03:10:40,467 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 381 transitions. Word has length 149 [2019-10-15 03:10:40,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:40,470 INFO L462 AbstractCegarLoop]: Abstraction has 324 states and 381 transitions. [2019-10-15 03:10:40,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:10:40,471 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 381 transitions. [2019-10-15 03:10:40,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 03:10:40,483 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:40,483 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:40,484 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:40,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:40,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1351301717, now seen corresponding path program 1 times [2019-10-15 03:10:40,486 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:40,486 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992405746] [2019-10-15 03:10:40,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:40,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:40,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:40,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992405746] [2019-10-15 03:10:40,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:40,797 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:40,797 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182935818] [2019-10-15 03:10:40,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:40,799 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:40,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:40,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:40,800 INFO L87 Difference]: Start difference. First operand 324 states and 381 transitions. Second operand 3 states. [2019-10-15 03:10:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:40,840 INFO L93 Difference]: Finished difference Result 483 states and 557 transitions. [2019-10-15 03:10:40,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:40,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2019-10-15 03:10:40,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:40,846 INFO L225 Difference]: With dead ends: 483 [2019-10-15 03:10:40,846 INFO L226 Difference]: Without dead ends: 326 [2019-10-15 03:10:40,851 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:40,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2019-10-15 03:10:40,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2019-10-15 03:10:40,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 326 states. [2019-10-15 03:10:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 383 transitions. [2019-10-15 03:10:40,907 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 383 transitions. Word has length 150 [2019-10-15 03:10:40,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:40,910 INFO L462 AbstractCegarLoop]: Abstraction has 326 states and 383 transitions. [2019-10-15 03:10:40,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:40,910 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 383 transitions. [2019-10-15 03:10:40,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-15 03:10:40,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:40,915 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:40,915 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:40,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:40,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1119639850, now seen corresponding path program 1 times [2019-10-15 03:10:40,916 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:40,916 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092337337] [2019-10-15 03:10:40,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:40,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:40,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:41,153 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:41,154 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092337337] [2019-10-15 03:10:41,155 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:41,155 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:41,155 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437856684] [2019-10-15 03:10:41,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:41,159 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:41,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:41,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:41,160 INFO L87 Difference]: Start difference. First operand 326 states and 383 transitions. Second operand 3 states. [2019-10-15 03:10:41,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:41,285 INFO L93 Difference]: Finished difference Result 634 states and 773 transitions. [2019-10-15 03:10:41,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:41,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2019-10-15 03:10:41,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:41,295 INFO L225 Difference]: With dead ends: 634 [2019-10-15 03:10:41,295 INFO L226 Difference]: Without dead ends: 366 [2019-10-15 03:10:41,300 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:41,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-10-15 03:10:41,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2019-10-15 03:10:41,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-10-15 03:10:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 451 transitions. [2019-10-15 03:10:41,338 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 451 transitions. Word has length 155 [2019-10-15 03:10:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:41,339 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 451 transitions. [2019-10-15 03:10:41,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:41,340 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 451 transitions. [2019-10-15 03:10:41,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-15 03:10:41,348 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:41,348 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:41,348 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:41,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:41,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1254907282, now seen corresponding path program 1 times [2019-10-15 03:10:41,349 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:41,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878250265] [2019-10-15 03:10:41,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:41,350 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:41,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:42,176 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:10:42,177 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878250265] [2019-10-15 03:10:42,179 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:42,182 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-15 03:10:42,182 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903911384] [2019-10-15 03:10:42,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-15 03:10:42,185 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:42,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-15 03:10:42,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:10:42,187 INFO L87 Difference]: Start difference. First operand 365 states and 451 transitions. Second operand 26 states. [2019-10-15 03:10:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:48,692 INFO L93 Difference]: Finished difference Result 720 states and 872 transitions. [2019-10-15 03:10:48,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 03:10:48,693 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 156 [2019-10-15 03:10:48,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:48,698 INFO L225 Difference]: With dead ends: 720 [2019-10-15 03:10:48,699 INFO L226 Difference]: Without dead ends: 558 [2019-10-15 03:10:48,701 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=159, Invalid=1647, Unknown=0, NotChecked=0, Total=1806 [2019-10-15 03:10:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2019-10-15 03:10:48,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 546. [2019-10-15 03:10:48,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 546 states. [2019-10-15 03:10:48,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 666 transitions. [2019-10-15 03:10:48,734 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 666 transitions. Word has length 156 [2019-10-15 03:10:48,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:48,735 INFO L462 AbstractCegarLoop]: Abstraction has 546 states and 666 transitions. [2019-10-15 03:10:48,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-15 03:10:48,735 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 666 transitions. [2019-10-15 03:10:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:10:48,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:48,739 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:48,740 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:48,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:48,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1443475956, now seen corresponding path program 1 times [2019-10-15 03:10:48,740 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:48,740 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622957258] [2019-10-15 03:10:48,741 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:48,741 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:48,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-15 03:10:48,942 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622957258] [2019-10-15 03:10:48,942 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:48,942 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:10:48,942 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802956065] [2019-10-15 03:10:48,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:10:48,943 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:48,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:10:48,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:10:48,944 INFO L87 Difference]: Start difference. First operand 546 states and 666 transitions. Second operand 10 states. [2019-10-15 03:10:49,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:49,095 INFO L93 Difference]: Finished difference Result 555 states and 676 transitions. [2019-10-15 03:10:49,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:10:49,096 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 160 [2019-10-15 03:10:49,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:49,100 INFO L225 Difference]: With dead ends: 555 [2019-10-15 03:10:49,100 INFO L226 Difference]: Without dead ends: 550 [2019-10-15 03:10:49,101 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:10:49,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2019-10-15 03:10:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2019-10-15 03:10:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-10-15 03:10:49,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 669 transitions. [2019-10-15 03:10:49,130 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 669 transitions. Word has length 160 [2019-10-15 03:10:49,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:49,131 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 669 transitions. [2019-10-15 03:10:49,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:10:49,131 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 669 transitions. [2019-10-15 03:10:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-15 03:10:49,134 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:49,135 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:49,135 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:49,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:49,135 INFO L82 PathProgramCache]: Analyzing trace with hash 903951142, now seen corresponding path program 1 times [2019-10-15 03:10:49,136 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:49,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300221766] [2019-10-15 03:10:49,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:49,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:49,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-15 03:10:49,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300221766] [2019-10-15 03:10:49,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147483471] [2019-10-15 03:10:49,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:10:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:50,297 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:10:50,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:10:50,526 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:50,527 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:10:50,794 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 03:10:50,795 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1679543044] [2019-10-15 03:10:50,829 INFO L162 IcfgInterpreter]: Started Sifa with 147 locations of interest [2019-10-15 03:10:50,830 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:10:50,837 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:10:50,846 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:10:50,846 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs