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_spec4_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:58:45,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:58:45,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:58:45,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:58:45,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:58:45,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:58:45,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:58:45,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:58:45,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:58:45,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:58:45,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:58:45,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:58:45,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:58:45,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:58:45,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:58:45,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:58:45,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:58:45,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:58:45,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:58:45,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:58:45,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:58:45,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:58:45,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:58:45,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:58:45,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:58:45,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:58:45,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:58:45,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:58:45,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:58:45,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:58:45,116 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:58:45,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:58:45,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:58:45,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:58:45,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:58:45,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:58:45,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:58:45,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:58:45,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:58:45,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:58:45,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:58:45,131 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 [2019-10-07 14:58:45,153 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:58:45,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:58:45,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:58:45,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:58:45,156 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:58:45,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:58:45,156 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:58:45,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:58:45,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:58:45,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:58:45,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:58:45,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:58:45,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:58:45,159 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:58:45,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:58:45,159 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:58:45,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:58:45,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:58:45,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:58:45,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:58:45,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:58:45,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:58:45,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:58:45,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:58:45,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:58:45,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:58:45,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:58:45,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:58:45,163 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 [2019-10-07 14:58:45,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:58:45,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:58:45,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:58:45,501 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:58:45,501 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:58:45,502 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2019-10-07 14:58:45,566 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f7d6026/75aec6e3bd99414ab7a8a35c99aa8a88/FLAG1bf2d2c88 [2019-10-07 14:58:46,187 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:58:46,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product33.cil.c [2019-10-07 14:58:46,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f7d6026/75aec6e3bd99414ab7a8a35c99aa8a88/FLAG1bf2d2c88 [2019-10-07 14:58:46,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f7d6026/75aec6e3bd99414ab7a8a35c99aa8a88 [2019-10-07 14:58:46,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:58:46,387 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:58:46,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:58:46,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:58:46,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:58:46,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:58:46" (1/1) ... [2019-10-07 14:58:46,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4771d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:46, skipping insertion in model container [2019-10-07 14:58:46,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:58:46" (1/1) ... [2019-10-07 14:58:46,403 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:58:46,475 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:58:47,321 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:58:47,347 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:58:47,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:58:47,578 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:58:47,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47 WrapperNode [2019-10-07 14:58:47,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:58:47,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:58:47,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:58:47,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:58:47,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (1/1) ... [2019-10-07 14:58:47,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (1/1) ... [2019-10-07 14:58:47,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (1/1) ... [2019-10-07 14:58:47,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (1/1) ... [2019-10-07 14:58:47,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (1/1) ... [2019-10-07 14:58:47,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (1/1) ... [2019-10-07 14:58:47,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (1/1) ... [2019-10-07 14:58:47,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:58:47,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:58:47,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:58:47,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:58:47,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (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 [2019-10-07 14:58:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:58:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:58:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:58:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:58:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:58:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:58:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:58:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:58:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:58:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:58:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-07 14:58:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-07 14:58:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-07 14:58:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-07 14:58:47,891 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-07 14:58:47,892 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-07 14:58:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-07 14:58:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-07 14:58:47,894 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:58:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:58:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-07 14:58:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-07 14:58:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-07 14:58:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-07 14:58:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-07 14:58:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-07 14:58:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-07 14:58:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-07 14:58:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-07 14:58:47,896 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-07 14:58:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-07 14:58:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:58:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:58:47,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:58:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:58:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:58:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-07 14:58:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-07 14:58:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:58:47,898 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-07 14:58:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-07 14:58:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-07 14:58:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-07 14:58:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-07 14:58:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-07 14:58:47,899 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-07 14:58:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-07 14:58:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-07 14:58:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-07 14:58:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-07 14:58:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-07 14:58:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-07 14:58:47,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-07 14:58:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-07 14:58:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-07 14:58:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-07 14:58:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-07 14:58:47,901 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-07 14:58:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-07 14:58:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-07 14:58:47,902 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-07 14:58:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-07 14:58:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-07 14:58:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-07 14:58:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-07 14:58:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-07 14:58:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-07 14:58:47,903 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-07 14:58:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-07 14:58:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-07 14:58:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-07 14:58:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-07 14:58:47,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-07 14:58:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-07 14:58:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-07 14:58:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-07 14:58:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-07 14:58:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-07 14:58:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-07 14:58:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-07 14:58:47,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-07 14:58:47,907 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-07 14:58:47,907 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-07 14:58:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-07 14:58:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-07 14:58:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-07 14:58:47,908 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-07 14:58:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-07 14:58:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-10-07 14:58:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-07 14:58:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-07 14:58:47,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-07 14:58:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-07 14:58:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-07 14:58:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-07 14:58:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-07 14:58:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:58:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-07 14:58:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-07 14:58:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-07 14:58:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-07 14:58:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-07 14:58:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-07 14:58:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-07 14:58:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-07 14:58:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-07 14:58:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-07 14:58:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-07 14:58:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-07 14:58:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-07 14:58:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-07 14:58:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-07 14:58:47,912 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-07 14:58:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-07 14:58:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-07 14:58:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-07 14:58:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-07 14:58:47,913 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-07 14:58:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:58:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:58:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:58:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:58:47,915 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:58:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:58:47,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:58:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:58:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:58:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:58:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:58:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:58:47,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:58:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:58:47,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:58:47,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:58:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:58:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:58:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:58:47,922 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:58:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:58:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-07 14:58:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-07 14:58:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-07 14:58:47,923 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-07 14:58:47,924 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-07 14:58:47,929 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-07 14:58:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-07 14:58:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-07 14:58:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-07 14:58:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-07 14:58:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:58:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:58:47,930 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-07 14:58:47,931 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-07 14:58:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-07 14:58:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:58:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:58:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:58:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-07 14:58:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-07 14:58:47,932 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-07 14:58:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-07 14:58:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-07 14:58:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-07 14:58:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-07 14:58:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-07 14:58:47,933 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-07 14:58:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-07 14:58:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-07 14:58:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-07 14:58:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-07 14:58:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-07 14:58:47,934 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:58:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-07 14:58:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-07 14:58:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-07 14:58:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-07 14:58:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-07 14:58:47,935 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-07 14:58:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-07 14:58:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-07 14:58:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-07 14:58:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-07 14:58:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-07 14:58:47,936 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-07 14:58:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-07 14:58:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-07 14:58:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-07 14:58:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-07 14:58:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-07 14:58:47,937 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-07 14:58:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-07 14:58:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-07 14:58:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-07 14:58:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-07 14:58:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-07 14:58:47,938 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-07 14:58:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-07 14:58:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-07 14:58:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-07 14:58:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-07 14:58:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-07 14:58:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-07 14:58:47,939 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-07 14:58:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-07 14:58:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-10-07 14:58:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-07 14:58:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-07 14:58:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-07 14:58:47,940 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-07 14:58:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-07 14:58:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-07 14:58:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-07 14:58:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-07 14:58:47,941 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-07 14:58:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-07 14:58:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-07 14:58:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-07 14:58:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-07 14:58:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-07 14:58:47,942 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-07 14:58:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-07 14:58:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-07 14:58:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-07 14:58:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-07 14:58:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-07 14:58:47,943 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-07 14:58:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-07 14:58:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-07 14:58:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-07 14:58:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-10-07 14:58:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-07 14:58:47,944 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-07 14:58:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-07 14:58:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-07 14:58:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-07 14:58:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-07 14:58:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-07 14:58:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-07 14:58:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-07 14:58:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:58:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:58:47,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:58:52,828 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:58:52,828 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-07 14:58:52,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:58:52 BoogieIcfgContainer [2019-10-07 14:58:52,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:58:52,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:58:52,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:58:52,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:58:52,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:58:46" (1/3) ... [2019-10-07 14:58:52,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c61317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:58:52, skipping insertion in model container [2019-10-07 14:58:52,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:58:47" (2/3) ... [2019-10-07 14:58:52,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c61317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:58:52, skipping insertion in model container [2019-10-07 14:58:52,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:58:52" (3/3) ... [2019-10-07 14:58:52,848 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product33.cil.c [2019-10-07 14:58:52,859 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:58:52,871 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:58:52,884 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:58:52,934 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:58:52,934 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:58:52,934 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:58:52,934 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:58:52,934 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:58:52,938 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:58:52,938 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:58:52,939 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:58:52,976 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2019-10-07 14:58:52,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:58:52,996 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:52,998 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:53,000 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:53,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:53,006 INFO L82 PathProgramCache]: Analyzing trace with hash -155292595, now seen corresponding path program 1 times [2019-10-07 14:58:53,015 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:53,015 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:53,016 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:53,016 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:53,645 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:53,645 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:53,646 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:58:53,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:58:53,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:58:53,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:58:53,667 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 2 states. [2019-10-07 14:58:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:53,751 INFO L93 Difference]: Finished difference Result 669 states and 793 transitions. [2019-10-07 14:58:53,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:58:53,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-07 14:58:53,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:53,787 INFO L225 Difference]: With dead ends: 669 [2019-10-07 14:58:53,787 INFO L226 Difference]: Without dead ends: 413 [2019-10-07 14:58:53,800 INFO L606 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 [2019-10-07 14:58:53,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-07 14:58:53,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2019-10-07 14:58:53,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-07 14:58:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 488 transitions. [2019-10-07 14:58:53,887 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 488 transitions. Word has length 129 [2019-10-07 14:58:53,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:53,889 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 488 transitions. [2019-10-07 14:58:53,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:58:53,890 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 488 transitions. [2019-10-07 14:58:53,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 14:58:53,895 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:53,895 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:58:53,896 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:53,896 INFO L82 PathProgramCache]: Analyzing trace with hash 462079243, now seen corresponding path program 1 times [2019-10-07 14:58:53,896 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:53,897 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:53,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:53,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:53,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:54,245 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:54,245 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:54,245 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:58:54,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:58:54,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:58:54,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:54,249 INFO L87 Difference]: Start difference. First operand 413 states and 488 transitions. Second operand 3 states. [2019-10-07 14:58:54,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:54,341 INFO L93 Difference]: Finished difference Result 654 states and 764 transitions. [2019-10-07 14:58:54,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:58:54,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2019-10-07 14:58:54,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:54,349 INFO L225 Difference]: With dead ends: 654 [2019-10-07 14:58:54,349 INFO L226 Difference]: Without dead ends: 415 [2019-10-07 14:58:54,352 INFO L606 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 [2019-10-07 14:58:54,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2019-10-07 14:58:54,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2019-10-07 14:58:54,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2019-10-07 14:58:54,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 490 transitions. [2019-10-07 14:58:54,410 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 490 transitions. Word has length 130 [2019-10-07 14:58:54,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:54,410 INFO L462 AbstractCegarLoop]: Abstraction has 415 states and 490 transitions. [2019-10-07 14:58:54,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:58:54,411 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 490 transitions. [2019-10-07 14:58:54,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:58:54,414 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:54,414 INFO L385 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] [2019-10-07 14:58:54,414 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:54,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1596593104, now seen corresponding path program 1 times [2019-10-07 14:58:54,415 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:54,415 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:54,415 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:54,416 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:54,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:58:54,589 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:54,589 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:54,589 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:58:54,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:58:54,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:58:54,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:58:54,591 INFO L87 Difference]: Start difference. First operand 415 states and 490 transitions. Second operand 3 states. [2019-10-07 14:58:54,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:58:54,633 INFO L93 Difference]: Finished difference Result 814 states and 990 transitions. [2019-10-07 14:58:54,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:58:54,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2019-10-07 14:58:54,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:58:54,638 INFO L225 Difference]: With dead ends: 814 [2019-10-07 14:58:54,638 INFO L226 Difference]: Without dead ends: 457 [2019-10-07 14:58:54,640 INFO L606 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 [2019-10-07 14:58:54,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-07 14:58:54,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2019-10-07 14:58:54,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-10-07 14:58:54,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 561 transitions. [2019-10-07 14:58:54,669 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 561 transitions. Word has length 142 [2019-10-07 14:58:54,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:58:54,670 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 561 transitions. [2019-10-07 14:58:54,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:58:54,670 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 561 transitions. [2019-10-07 14:58:54,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:58:54,674 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:58:54,674 INFO L385 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] [2019-10-07 14:58:54,675 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:58:54,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:58:54,675 INFO L82 PathProgramCache]: Analyzing trace with hash -3337637, now seen corresponding path program 1 times [2019-10-07 14:58:54,675 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:58:54,675 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:54,676 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:54,676 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:58:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:58:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:58:55,257 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:58:55,258 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:58:55,258 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:58:55,258 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2019-10-07 14:58:55,260 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:58:55,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:58:55,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:58:55,261 INFO L87 Difference]: Start difference. First operand 456 states and 561 transitions. Second operand 21 states. [2019-10-07 14:59:06,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:06,040 INFO L93 Difference]: Finished difference Result 952 states and 1139 transitions. [2019-10-07 14:59:06,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-07 14:59:06,041 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 143 [2019-10-07 14:59:06,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:06,048 INFO L225 Difference]: With dead ends: 952 [2019-10-07 14:59:06,048 INFO L226 Difference]: Without dead ends: 707 [2019-10-07 14:59:06,050 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=195, Invalid=1527, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:59:06,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2019-10-07 14:59:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 700. [2019-10-07 14:59:06,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-07 14:59:06,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 847 transitions. [2019-10-07 14:59:06,119 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 847 transitions. Word has length 143 [2019-10-07 14:59:06,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:06,122 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 847 transitions. [2019-10-07 14:59:06,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:59:06,123 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 847 transitions. [2019-10-07 14:59:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-07 14:59:06,128 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:06,129 INFO L385 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] [2019-10-07 14:59:06,129 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:06,129 INFO L82 PathProgramCache]: Analyzing trace with hash -478066996, now seen corresponding path program 1 times [2019-10-07 14:59:06,130 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:06,130 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:06,130 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:06,130 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:06,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:59:06,735 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:06,735 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:06,735 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2019-10-07 14:59:06,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-10-07 14:59:06,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-10-07 14:59:06,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:59:06,737 INFO L87 Difference]: Start difference. First operand 700 states and 847 transitions. Second operand 23 states. [2019-10-07 14:59:08,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:08,839 INFO L93 Difference]: Finished difference Result 778 states and 937 transitions. [2019-10-07 14:59:08,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-10-07 14:59:08,839 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 149 [2019-10-07 14:59:08,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:08,844 INFO L225 Difference]: With dead ends: 778 [2019-10-07 14:59:08,845 INFO L226 Difference]: Without dead ends: 742 [2019-10-07 14:59:08,846 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=213, Invalid=1949, Unknown=0, NotChecked=0, Total=2162 [2019-10-07 14:59:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2019-10-07 14:59:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 737. [2019-10-07 14:59:08,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2019-10-07 14:59:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 884 transitions. [2019-10-07 14:59:08,888 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 884 transitions. Word has length 149 [2019-10-07 14:59:08,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:08,889 INFO L462 AbstractCegarLoop]: Abstraction has 737 states and 884 transitions. [2019-10-07 14:59:08,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-10-07 14:59:08,889 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 884 transitions. [2019-10-07 14:59:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-10-07 14:59:08,895 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:08,896 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:08,896 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:08,896 INFO L82 PathProgramCache]: Analyzing trace with hash 266761706, now seen corresponding path program 1 times [2019-10-07 14:59:08,896 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:08,897 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:08,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:08,897 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:08,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:59:09,639 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:09,639 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:09,639 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:59:09,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:59:09,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:59:09,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:59:09,641 INFO L87 Difference]: Start difference. First operand 737 states and 884 transitions. Second operand 28 states. [2019-10-07 14:59:21,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:21,476 INFO L93 Difference]: Finished difference Result 1492 states and 1768 transitions. [2019-10-07 14:59:21,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-10-07 14:59:21,477 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 266 [2019-10-07 14:59:21,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:21,489 INFO L225 Difference]: With dead ends: 1492 [2019-10-07 14:59:21,489 INFO L226 Difference]: Without dead ends: 1293 [2019-10-07 14:59:21,493 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=315, Invalid=3717, Unknown=0, NotChecked=0, Total=4032 [2019-10-07 14:59:21,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1293 states. [2019-10-07 14:59:21,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1293 to 1222. [2019-10-07 14:59:21,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1222 states. [2019-10-07 14:59:21,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1439 transitions. [2019-10-07 14:59:21,593 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1439 transitions. Word has length 266 [2019-10-07 14:59:21,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:21,595 INFO L462 AbstractCegarLoop]: Abstraction has 1222 states and 1439 transitions. [2019-10-07 14:59:21,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:59:21,596 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1439 transitions. [2019-10-07 14:59:21,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2019-10-07 14:59:21,605 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:21,606 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:21,607 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:21,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:21,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1018697435, now seen corresponding path program 1 times [2019-10-07 14:59:21,608 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:21,608 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:21,608 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:21,608 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:21,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:21,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:22,046 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:59:22,047 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:22,052 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:22,052 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:59:22,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:59:22,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:59:22,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:59:22,055 INFO L87 Difference]: Start difference. First operand 1222 states and 1439 transitions. Second operand 10 states. [2019-10-07 14:59:22,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:22,152 INFO L93 Difference]: Finished difference Result 1977 states and 2273 transitions. [2019-10-07 14:59:22,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:59:22,153 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 270 [2019-10-07 14:59:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:22,160 INFO L225 Difference]: With dead ends: 1977 [2019-10-07 14:59:22,160 INFO L226 Difference]: Without dead ends: 1262 [2019-10-07 14:59:22,163 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:59:22,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2019-10-07 14:59:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1230. [2019-10-07 14:59:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1230 states. [2019-10-07 14:59:22,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1447 transitions. [2019-10-07 14:59:22,237 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1447 transitions. Word has length 270 [2019-10-07 14:59:22,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:22,238 INFO L462 AbstractCegarLoop]: Abstraction has 1230 states and 1447 transitions. [2019-10-07 14:59:22,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:59:22,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1447 transitions. [2019-10-07 14:59:22,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2019-10-07 14:59:22,247 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:22,247 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:22,248 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:22,248 INFO L82 PathProgramCache]: Analyzing trace with hash -770093210, now seen corresponding path program 1 times [2019-10-07 14:59:22,248 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:22,248 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:22,249 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:22,249 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-10-07 14:59:22,685 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:22,685 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:59:22,685 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-07 14:59:22,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-07 14:59:22,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-07 14:59:22,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:59:22,688 INFO L87 Difference]: Start difference. First operand 1230 states and 1447 transitions. Second operand 11 states. [2019-10-07 14:59:25,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:59:25,499 INFO L93 Difference]: Finished difference Result 1897 states and 2138 transitions. [2019-10-07 14:59:25,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:59:25,499 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 292 [2019-10-07 14:59:25,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:59:25,508 INFO L225 Difference]: With dead ends: 1897 [2019-10-07 14:59:25,509 INFO L226 Difference]: Without dead ends: 1566 [2019-10-07 14:59:25,511 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:59:25,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2019-10-07 14:59:25,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1544. [2019-10-07 14:59:25,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1544 states. [2019-10-07 14:59:25,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 1756 transitions. [2019-10-07 14:59:25,603 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 1756 transitions. Word has length 292 [2019-10-07 14:59:25,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:59:25,605 INFO L462 AbstractCegarLoop]: Abstraction has 1544 states and 1756 transitions. [2019-10-07 14:59:25,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-07 14:59:25,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 1756 transitions. [2019-10-07 14:59:25,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-10-07 14:59:25,615 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:59:25,616 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:59:25,616 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:59:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:59:25,617 INFO L82 PathProgramCache]: Analyzing trace with hash 189779639, now seen corresponding path program 1 times [2019-10-07 14:59:25,617 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:59:25,617 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:25,617 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:25,617 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:59:25,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:59:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-07 14:59:26,813 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:59:26,813 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:59:26,814 INFO L95 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 [2019-10-07 14:59:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:59:27,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 3493 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:59:27,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:59:27,794 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-10-07 14:59:27,795 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:59:28,566 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:59:28,567 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:59:28,612 INFO L162 IcfgInterpreter]: Started Sifa with 228 locations of interest [2019-10-07 14:59:28,613 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:59:28,621 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:59:28,643 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:59:28,643 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 15:00:29,652 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 686 [2019-10-07 15:00:34,042 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 316 DAG size of output: 257 [2019-10-07 15:00:34,418 WARN L191 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 15:00:34,711 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 15:00:34,907 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 15:00:35,056 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:00:35,714 WARN L191 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:36,546 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:37,181 WARN L191 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:37,367 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:00:37,992 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:39,219 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1025 DAG size of output: 1023 [2019-10-07 15:00:39,877 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:40,020 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:00:40,687 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:41,331 WARN L191 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:41,993 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:42,116 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:00:42,731 WARN L191 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 1023 [2019-10-07 15:00:42,757 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 559 for LOIs [2019-10-07 15:00:43,101 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 15:00:43,214 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 652 [2019-10-07 15:00:43,348 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 447 [2019-10-07 15:00:43,810 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 948 [2019-10-07 15:00:43,811 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1069 for LOIs [2019-10-07 15:00:44,459 WARN L191 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:45,065 WARN L191 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:45,284 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:00:46,220 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:00:46,854 WARN L191 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:47,504 WARN L191 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:47,869 WARN L191 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:00:48,774 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:00:49,592 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:50,211 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:50,427 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:00:51,322 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:00:52,318 WARN L191 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 1213 DAG size of output: 1069 [2019-10-07 15:00:52,926 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:53,170 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:00:54,083 WARN L191 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:00:54,705 WARN L191 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:55,316 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:55,561 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:00:56,448 WARN L191 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:00:57,065 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:57,684 WARN L191 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:00:57,936 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:00:58,824 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:00:59,447 WARN L191 SmtUtils]: Spent 620.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:00,055 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:00,271 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:01,169 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:01,776 WARN L191 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:02,391 WARN L191 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:02,600 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:03,491 WARN L191 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:04,101 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:04,709 WARN L191 SmtUtils]: Spent 605.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:04,919 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:05,800 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:06,434 WARN L191 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:07,045 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:07,257 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:08,153 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:08,760 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:09,374 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:09,583 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:10,471 WARN L191 SmtUtils]: Spent 885.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:11,088 WARN L191 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:11,714 WARN L191 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:11,930 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:12,815 WARN L191 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:13,427 WARN L191 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:14,039 WARN L191 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 1069 [2019-10-07 15:01:14,250 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:15,151 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:16,129 WARN L191 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:17,020 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:17,253 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:18,150 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:19,801 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1211 [2019-10-07 15:01:20,704 WARN L191 SmtUtils]: Spent 899.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:20,932 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:21,836 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:22,745 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:23,654 WARN L191 SmtUtils]: Spent 905.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:23,866 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:24,766 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:25,762 WARN L191 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:26,676 WARN L191 SmtUtils]: Spent 909.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:26,898 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:01:27,803 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:28,715 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:29,626 WARN L191 SmtUtils]: Spent 907.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:29,860 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:01:30,767 WARN L191 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:31,672 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:32,570 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:32,792 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:01:33,690 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:01:34,795 WARN L191 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 15:01:35,694 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 15:01:35,935 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:01:36,841 WARN L191 SmtUtils]: Spent 904.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 15:01:37,745 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 15:01:38,663 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 15:01:38,885 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:01:39,804 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 15:01:41,468 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1211 [2019-10-07 15:01:42,382 WARN L191 SmtUtils]: Spent 910.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:42,608 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:43,499 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:45,390 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1211 [2019-10-07 15:01:46,278 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:46,503 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:47,406 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:48,306 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:49,210 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:49,427 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:50,327 WARN L191 SmtUtils]: Spent 898.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:51,988 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1211 [2019-10-07 15:01:52,881 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:53,107 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:53,997 WARN L191 SmtUtils]: Spent 888.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:55,996 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1211 [2019-10-07 15:01:56,897 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:57,121 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:01:58,020 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:58,913 WARN L191 SmtUtils]: Spent 890.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:01:59,811 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:02:00,023 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 588 [2019-10-07 15:02:00,918 WARN L191 SmtUtils]: Spent 893.00 ms on a formula simplification that was a NOOP. DAG size: 1211 [2019-10-07 15:02:01,867 WARN L191 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:02,772 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:02,995 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:02:03,889 WARN L191 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:04,803 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:05,710 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:05,930 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:02:06,833 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:07,737 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:08,634 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:08,859 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:02:09,778 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:11,323 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1213 [2019-10-07 15:02:12,230 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 1213 [2019-10-07 15:02:12,466 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:02:13,381 WARN L191 SmtUtils]: Spent 912.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:15,037 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1224 DAG size of output: 1215 [2019-10-07 15:02:15,952 WARN L191 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 1215 [2019-10-07 15:02:16,196 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 591 [2019-10-07 15:02:17,100 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification that was a NOOP. DAG size: 1217 [2019-10-07 15:02:17,357 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 15:02:17,359 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 15:02:17,365 INFO L168 Benchmark]: Toolchain (without parser) took 210978.68 ms. Allocated memory was 146.3 MB in the beginning and 796.9 MB in the end (delta: 650.6 MB). Free memory was 100.4 MB in the beginning and 97.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 653.6 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:17,366 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 15:02:17,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1191.55 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.2 MB in the beginning and 132.4 MB in the end (delta: -32.3 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:17,367 INFO L168 Benchmark]: Boogie Preprocessor took 218.06 ms. Allocated memory is still 203.4 MB. Free memory was 132.4 MB in the beginning and 123.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:17,368 INFO L168 Benchmark]: RCFGBuilder took 5032.42 ms. Allocated memory was 203.4 MB in the beginning and 288.4 MB in the end (delta: 84.9 MB). Free memory was 123.5 MB in the beginning and 208.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 127.3 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:17,369 INFO L168 Benchmark]: TraceAbstraction took 204530.63 ms. Allocated memory was 288.4 MB in the beginning and 796.9 MB in the end (delta: 508.6 MB). Free memory was 208.7 MB in the beginning and 97.4 MB in the end (delta: 111.3 MB). Peak memory consumption was 619.8 MB. Max. memory is 7.1 GB. [2019-10-07 15:02:17,372 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1191.55 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.2 MB in the beginning and 132.4 MB in the end (delta: -32.3 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 218.06 ms. Allocated memory is still 203.4 MB. Free memory was 132.4 MB in the beginning and 123.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5032.42 ms. Allocated memory was 203.4 MB in the beginning and 288.4 MB in the end (delta: 84.9 MB). Free memory was 123.5 MB in the beginning and 208.7 MB in the end (delta: -85.2 MB). Peak memory consumption was 127.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204530.63 ms. Allocated memory was 288.4 MB in the beginning and 796.9 MB in the end (delta: 508.6 MB). Free memory was 208.7 MB in the beginning and 97.4 MB in the end (delta: 111.3 MB). Peak memory consumption was 619.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...