./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef78c6d8b0220e9995e02472b8b6d8b6d2582f7d ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:47:03,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:47:03,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:47:03,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:47:03,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:47:03,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:47:03,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:47:03,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:47:03,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:47:03,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:47:03,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:47:03,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:47:03,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:47:03,224 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:47:03,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:47:03,228 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:47:03,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:47:03,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:47:03,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:47:03,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:47:03,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:47:03,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:47:03,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:47:03,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:47:03,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:47:03,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:47:03,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:47:03,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:47:03,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:47:03,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:47:03,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:47:03,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:47:03,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:47:03,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:47:03,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:47:03,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:47:03,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:47:03,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:47:03,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:47:03,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:47:03,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:47:03,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:47:03,294 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:47:03,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:47:03,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:47:03,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:47:03,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:47:03,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:47:03,297 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:47:03,297 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:47:03,298 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:47:03,298 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:47:03,298 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:47:03,299 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:47:03,299 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:47:03,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:47:03,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:47:03,300 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:47:03,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:47:03,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:47:03,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:47:03,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:47:03,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:47:03,301 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:47:03,301 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:47:03,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:47:03,301 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:47:03,301 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:47:03,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:47:03,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:47:03,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:47:03,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:47:03,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:47:03,303 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:47:03,304 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:47:03,304 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef78c6d8b0220e9995e02472b8b6d8b6d2582f7d [2021-08-27 15:47:03,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:47:03,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:47:03,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:47:03,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:47:03,636 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:47:03,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product27.cil.c [2021-08-27 15:47:03,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cf6b0c71/b4a56fc738a04f858a5c3416112c1be4/FLAG1949836c5 [2021-08-27 15:47:04,194 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:47:04,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c [2021-08-27 15:47:04,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cf6b0c71/b4a56fc738a04f858a5c3416112c1be4/FLAG1949836c5 [2021-08-27 15:47:04,550 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cf6b0c71/b4a56fc738a04f858a5c3416112c1be4 [2021-08-27 15:47:04,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:47:04,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:47:04,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:47:04,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:47:04,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:47:04,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:47:04" (1/1) ... [2021-08-27 15:47:04,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8171f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:04, skipping insertion in model container [2021-08-27 15:47:04,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:47:04" (1/1) ... [2021-08-27 15:47:04,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:47:04,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:47:04,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c[28025,28038] [2021-08-27 15:47:05,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:47:05,022 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:47:05,101 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product27.cil.c[28025,28038] [2021-08-27 15:47:05,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:47:05,198 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:47:05,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05 WrapperNode [2021-08-27 15:47:05,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:47:05,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:47:05,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:47:05,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:47:05,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:47:05,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:47:05,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:47:05,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:47:05,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:47:05,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:47:05,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:47:05,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:47:05,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (1/1) ... [2021-08-27 15:47:05,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:47:05,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:47:05,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:47:05,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:47:05,548 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-08-27 15:47:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:47:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:47:05,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:47:05,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:47:08,688 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:47:08,688 INFO L299 CfgBuilder]: Removed 685 assume(true) statements. [2021-08-27 15:47:08,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:47:08 BoogieIcfgContainer [2021-08-27 15:47:08,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:47:08,691 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:47:08,692 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:47:08,694 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:47:08,694 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:47:08,695 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:47:04" (1/3) ... [2021-08-27 15:47:08,695 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1308a0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:47:08, skipping insertion in model container [2021-08-27 15:47:08,695 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:47:08,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:05" (2/3) ... [2021-08-27 15:47:08,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1308a0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:47:08, skipping insertion in model container [2021-08-27 15:47:08,696 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:47:08,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:47:08" (3/3) ... [2021-08-27 15:47:08,697 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec0_product27.cil.c [2021-08-27 15:47:08,729 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:47:08,730 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:47:08,730 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:47:08,730 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:47:08,730 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:47:08,730 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:47:08,730 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:47:08,730 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:47:08,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 940 states, 939 states have (on average 1.7156549520766773) internal successors, (1611), 939 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:47:08,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 259 [2021-08-27 15:47:08,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:47:08,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:47:08,830 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:47:08,830 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:47:08,831 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:47:08,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 940 states, 939 states have (on average 1.7156549520766773) internal successors, (1611), 939 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:47:08,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 259 [2021-08-27 15:47:08,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:47:08,844 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:47:08,846 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:47:08,846 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:47:08,851 INFO L791 eck$LassoCheckResult]: Stem: 469#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(28);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(16);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string21.base, #t~string21.offset, 1);call write~init~int(115, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(10, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(10);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(12);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(10);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(18);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(16);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(44);call #t~string85.base, #t~string85.offset := #Ultimate.allocOnStack(44);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(9);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(9);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(11);call #t~string96.base, #t~string96.offset := #Ultimate.allocOnStack(19);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string99.base, #t~string99.offset, 1);call write~init~int(100, #t~string99.base, 1 + #t~string99.offset, 1);call write~init~int(10, #t~string99.base, 2 + #t~string99.offset, 1);call write~init~int(0, #t~string99.base, 3 + #t~string99.offset, 1);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string102.base, #t~string102.offset, 1);call write~init~int(100, #t~string102.base, 1 + #t~string102.offset, 1);call write~init~int(10, #t~string102.base, 2 + #t~string102.offset, 1);call write~init~int(0, #t~string102.base, 3 + #t~string102.offset, 1);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(10);call #t~string114.base, #t~string114.offset := #Ultimate.allocOnStack(34);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(30);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(16);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(20);call #t~string129.base, #t~string129.offset := #Ultimate.allocOnStack(22);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(21);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0; 851#L-1true havoc main_#res;havoc main_#t~nondet93, main_#t~ret94, main_~retValue_acc~20, main_~tmp~9;main_~retValue_acc~20 := main_#t~nondet93;havoc main_#t~nondet93;havoc main_~tmp~9; 567#L350true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 19#L358true main_#t~ret94 := valid_product_#res;main_~tmp~9 := main_#t~ret94;havoc main_#t~ret94; 69#L1407true assume 0 != main_~tmp~9;havoc setup_#t~nondet88, setup_#t~nondet90, setup_#t~nondet92, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset;havoc setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset;~bob~0 := 1;setup_bob_#in~bob___0 := ~bob~0;havoc setup_bob_~bob___0;setup_bob_~bob___0 := setup_bob_#in~bob___0;setup_bob__wrappee__Base_#in~bob___0 := setup_bob_~bob___0;havoc setup_bob__wrappee__Base_~bob___0;setup_bob__wrappee__Base_~bob___0 := setup_bob__wrappee__Base_#in~bob___0;setClientId_#in~handle, setClientId_#in~value := setup_bob__wrappee__Base_~bob___0, setup_bob__wrappee__Base_~bob___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 863#L2977true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 347#L2983-2true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_bob_~bob___0, 123;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 249#L2542true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 633#L2548-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string87.base, #t~string87.offset;havoc setup_#t~nondet88;~rjh~0 := 2;setup_rjh_#in~rjh___0 := ~rjh~0;havoc setup_rjh_~rjh___0;setup_rjh_~rjh___0 := setup_rjh_#in~rjh___0;setup_rjh__wrappee__Base_#in~rjh___0 := setup_rjh_~rjh___0;havoc setup_rjh__wrappee__Base_~rjh___0;setup_rjh__wrappee__Base_~rjh___0 := setup_rjh__wrappee__Base_#in~rjh___0;setClientId_#in~handle, setClientId_#in~value := setup_rjh__wrappee__Base_~rjh___0, setup_rjh__wrappee__Base_~rjh___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 372#L2977-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 734#L2983-5true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_rjh_~rjh___0, 456;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 930#L2542-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 737#L2548-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string89.base, #t~string89.offset;havoc setup_#t~nondet90;~chuck~0 := 3;setup_chuck_#in~chuck___0 := ~chuck~0;havoc setup_chuck_~chuck___0;setup_chuck_~chuck___0 := setup_chuck_#in~chuck___0;setup_chuck__wrappee__Base_#in~chuck___0 := setup_chuck_~chuck___0;havoc setup_chuck__wrappee__Base_~chuck___0;setup_chuck__wrappee__Base_~chuck___0 := setup_chuck__wrappee__Base_#in~chuck___0;setClientId_#in~handle, setClientId_#in~value := setup_chuck__wrappee__Base_~chuck___0, setup_chuck__wrappee__Base_~chuck___0;havoc setClientId_~handle, setClientId_~value;setClientId_~handle := setClientId_#in~handle;setClientId_~value := setClientId_#in~value; 758#L2977-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 232#L2983-8true setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := setup_chuck_~chuck___0, 789;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 75#L2542-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 253#L2548-8true setup_~__cil_tmp3~3.base, setup_~__cil_tmp3~3.offset := #t~string91.base, #t~string91.offset;havoc setup_#t~nondet92; 270#L1394true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_#t~nondet17, test_~op1~0, test_~op2~0, test_~op3~0, test_~op4~0, test_~op5~0, test_~op6~0, test_~op7~0, test_~op8~0, test_~op9~0, test_~op10~0, test_~op11~0, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0, test_~tmp___3~0, test_~tmp___4~0, test_~tmp___5~0, test_~tmp___6~0, test_~tmp___7~0, test_~tmp___8~0, test_~tmp___9~0;havoc test_~op1~0;havoc test_~op2~0;havoc test_~op3~0;havoc test_~op4~0;havoc test_~op5~0;havoc test_~op6~0;havoc test_~op7~0;havoc test_~op8~0;havoc test_~op9~0;havoc test_~op10~0;havoc test_~op11~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;havoc test_~tmp___3~0;havoc test_~tmp___4~0;havoc test_~tmp___5~0;havoc test_~tmp___6~0;havoc test_~tmp___7~0;havoc test_~tmp___8~0;havoc test_~tmp___9~0;test_~op1~0 := 0;test_~op2~0 := 0;test_~op3~0 := 0;test_~op4~0 := 0;test_~op5~0 := 0;test_~op6~0 := 0;test_~op7~0 := 0;test_~op8~0 := 0;test_~op9~0 := 0;test_~op10~0 := 0;test_~op11~0 := 0;test_~splverifierCounter~0 := 0; 112#L243-1true [2021-08-27 15:47:08,851 INFO L793 eck$LassoCheckResult]: Loop: 112#L243-1true assume !false; 577#L92true assume test_~splverifierCounter~0 < 4; 726#L93true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 571#L99true assume !(0 == test_~op1~0); 173#L112true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet8;havoc test_#t~nondet8; 9#L117true assume 0 != test_~tmp___8~0;setClientAutoResponse_#in~handle, setClientAutoResponse_#in~value := ~rjh~0, 1;havoc setClientAutoResponse_~handle, setClientAutoResponse_~value;setClientAutoResponse_~handle := setClientAutoResponse_#in~handle;setClientAutoResponse_~value := setClientAutoResponse_#in~value; 619#L2495true assume 1 == setClientAutoResponse_~handle;~__ste_client_autoResponse0~0 := setClientAutoResponse_~value; 554#L2501-2true test_~op2~0 := 1; 112#L243-1true [2021-08-27 15:47:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:47:08,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2021-08-27 15:47:08,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:47:08,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649073252] [2021-08-27 15:47:08,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:47:08,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:47:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:47:09,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:47:09,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:47:09,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649073252] [2021-08-27 15:47:09,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649073252] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:47:09,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:47:09,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:47:09,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32175565] [2021-08-27 15:47:09,206 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:47:09,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:47:09,207 INFO L82 PathProgramCache]: Analyzing trace with hash 527790547, now seen corresponding path program 1 times [2021-08-27 15:47:09,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:47:09,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125119700] [2021-08-27 15:47:09,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:47:09,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:47:09,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:47:09,231 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:47:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:47:09,271 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:47:09,434 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:47:09,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:47:09,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:47:09,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:47:09,435 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:47:09,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:47:09,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:47:09,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:47:09,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product27.cil.c_Iteration1_Loop [2021-08-27 15:47:09,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:47:09,437 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:47:09,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,689 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:47:09,690 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:47:09,692 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:47:09,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:47:09,693 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:47:09,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:47:09,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:47:09,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 15:47:09,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 15:47:09,749 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:47:09,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:47:09,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:47:09,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 15:47:09,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:47:09,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:47:09,809 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:47:09,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 15:47:09,815 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:47:09,815 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:47:09,815 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:47:09,815 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:47:09,815 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:47:09,815 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:47:09,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:47:09,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:47:09,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec0_product27.cil.c_Iteration1_Loop [2021-08-27 15:47:09,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:47:09,816 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:47:09,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:09,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:47:10,050 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:47:10,054 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:47:10,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:47:10,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:47:10,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:47:10,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:47:10,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:47:10,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:47:10,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:47:10,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:47:10,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:47:10,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:47:10,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:47:10,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 15:47:10,092 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:47:10,110 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:47:10,110 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:47:10,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:47:10,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:47:10,125 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:47:10,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 15:47:10,166 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:47:10,166 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:47:10,166 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:47:10,167 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] [2021-08-27 15:47:10,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 15:47:10,221 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:47:10,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:47:10,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 15:47:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:47:10,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:47:10,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:47:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:47:10,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:47:10,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:47:10,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:47:10,904 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-08-27 15:47:10,907 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 940 states, 939 states have (on average 1.7156549520766773) internal successors, (1611), 939 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:47:11,072 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 940 states, 939 states have (on average 1.7156549520766773) internal successors, (1611), 939 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2507 states and 4256 transitions. Complement of second has 7 states. [2021-08-27 15:47:11,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 15:47:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:47:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2698 transitions. [2021-08-27 15:47:11,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2698 transitions. Stem has 18 letters. Loop has 8 letters. [2021-08-27 15:47:11,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:47:11,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2698 transitions. Stem has 26 letters. Loop has 8 letters. [2021-08-27 15:47:11,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:47:11,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 2698 transitions. Stem has 18 letters. Loop has 16 letters. [2021-08-27 15:47:11,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:47:11,083 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2507 states and 4256 transitions. [2021-08-27 15:47:11,104 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:47:11,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2507 states to 0 states and 0 transitions. [2021-08-27 15:47:11,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:47:11,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:47:11,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:47:11,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:47:11,108 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:47:11,108 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:47:11,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:47:11,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:47:11,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:47:11,114 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:47:11,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:47:11,116 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 15:47:11,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 15:47:11,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 15:47:11,116 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:47:11,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 15:47:11,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:47:11,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:47:11,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:47:11,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:47:11,117 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:47:11,117 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:47:11,117 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:47:11,117 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:47:11,118 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:47:11,118 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:47:11,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:47:11,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:47:11 BoogieIcfgContainer [2021-08-27 15:47:11,122 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:47:11,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:47:11,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:47:11,123 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:47:11,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:47:08" (3/4) ... [2021-08-27 15:47:11,125 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:47:11,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:47:11,127 INFO L168 Benchmark]: Toolchain (without parser) took 6572.57 ms. Allocated memory was 65.0 MB in the beginning and 218.1 MB in the end (delta: 153.1 MB). Free memory was 41.6 MB in the beginning and 63.5 MB in the end (delta: -21.9 MB). Peak memory consumption was 132.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:47:11,127 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 65.0 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:47:11,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 644.95 ms. Allocated memory is still 65.0 MB. Free memory was 41.3 MB in the beginning and 36.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:47:11,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.33 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 36.8 MB in the beginning and 46.7 MB in the end (delta: -9.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-08-27 15:47:11,129 INFO L168 Benchmark]: Boogie Preprocessor took 114.77 ms. Allocated memory is still 79.7 MB. Free memory was 46.7 MB in the beginning and 33.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:47:11,134 INFO L168 Benchmark]: RCFGBuilder took 3229.92 ms. Allocated memory was 79.7 MB in the beginning and 146.8 MB in the end (delta: 67.1 MB). Free memory was 33.7 MB in the beginning and 76.3 MB in the end (delta: -42.6 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:47:11,134 INFO L168 Benchmark]: BuchiAutomizer took 2430.65 ms. Allocated memory was 146.8 MB in the beginning and 218.1 MB in the end (delta: 71.3 MB). Free memory was 75.2 MB in the beginning and 63.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 83.0 MB. Max. memory is 16.1 GB. [2021-08-27 15:47:11,135 INFO L168 Benchmark]: Witness Printer took 2.60 ms. Allocated memory is still 218.1 MB. Free memory is still 63.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:47:11,140 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 65.0 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 644.95 ms. Allocated memory is still 65.0 MB. Free memory was 41.3 MB in the beginning and 36.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 145.33 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 36.8 MB in the beginning and 46.7 MB in the end (delta: -9.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 114.77 ms. Allocated memory is still 79.7 MB. Free memory was 46.7 MB in the beginning and 33.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3229.92 ms. Allocated memory was 79.7 MB in the beginning and 146.8 MB in the end (delta: 67.1 MB). Free memory was 33.7 MB in the beginning and 76.3 MB in the end (delta: -42.6 MB). Peak memory consumption was 53.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2430.65 ms. Allocated memory was 146.8 MB in the beginning and 218.1 MB in the end (delta: 71.3 MB). Free memory was 75.2 MB in the beginning and 63.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 83.0 MB. Max. memory is 16.1 GB. * Witness Printer took 2.60 ms. Allocated memory is still 218.1 MB. Free memory is still 63.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 7 + -2 * splverifierCounter and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1603 SDtfs, 1603 SDslu, 3102 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital45 mio100 ax100 hnf100 lsp24 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq209 hnf86 smp100 dnf120 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 112ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:47:11,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...