./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec1_product14.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_spec1_product14.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 1f55b75e871e72007c117e8967e50be91fa054bf ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 15:47:57,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:47:57,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:47:57,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:47:57,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:47:57,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:47:57,820 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:47:57,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:47:57,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:47:57,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:47:57,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:47:57,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:47:57,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:47:57,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:47:57,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:47:57,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:47:57,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:47:57,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:47:57,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:47:57,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:47:57,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:47:57,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:47:57,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:47:57,863 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:47:57,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:47:57,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:47:57,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:47:57,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:47:57,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:47:57,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:47:57,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:47:57,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:47:57,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:47:57,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:47:57,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:47:57,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:47:57,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:47:57,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:47:57,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:47:57,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:47:57,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:47:57,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:47:57,914 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:47:57,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:47:57,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:47:57,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:47:57,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:47:57,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:47:57,917 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:47:57,917 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:47:57,917 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:47:57,918 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:47:57,918 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:47:57,918 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:47:57,919 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:47:57,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:47:57,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:47:57,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:47:57,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:47:57,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:47:57,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:47:57,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:47:57,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:47:57,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:47:57,925 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:47:57,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:47:57,926 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:47:57,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:47:57,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:47:57,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:47:57,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:47:57,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:47:57,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:47:57,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:47:57,928 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:47:57,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f55b75e871e72007c117e8967e50be91fa054bf [2021-08-27 15:47:58,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:47:58,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:47:58,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:47:58,241 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:47:58,241 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:47:58,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2021-08-27 15:47:58,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09e676dbd/8d2d9b4a345c49d3a1b325177d6eafe9/FLAGdb5933952 [2021-08-27 15:47:58,815 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:47:58,815 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product14.cil.c [2021-08-27 15:47:58,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09e676dbd/8d2d9b4a345c49d3a1b325177d6eafe9/FLAGdb5933952 [2021-08-27 15:47:59,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09e676dbd/8d2d9b4a345c49d3a1b325177d6eafe9 [2021-08-27 15:47:59,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:47:59,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:47:59,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:47:59,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:47:59,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:47:59,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:47:59,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1a919b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59, skipping insertion in model container [2021-08-27 15:47:59,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:47:59,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:47:59,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:47:59,810 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_spec1_product14.cil.c[62347,62360] [2021-08-27 15:47:59,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:47:59,822 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:47:59,930 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_spec1_product14.cil.c[62347,62360] [2021-08-27 15:47:59,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:47:59,957 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:47:59,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59 WrapperNode [2021-08-27 15:47:59,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:47:59,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:47:59,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:47:59,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:47:59,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:47:59,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:48:00,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:48:00,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:48:00,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:48:00,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:48:00,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:48:00,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:48:00,228 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:48:00,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (1/1) ... [2021-08-27 15:48:00,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:00,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:00,248 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 15:48:00,252 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 15:48:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-08-27 15:48:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:48:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:48:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:48:00,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:48:02,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:48:02,254 INFO L299 CfgBuilder]: Removed 453 assume(true) statements. [2021-08-27 15:48:02,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:02 BoogieIcfgContainer [2021-08-27 15:48:02,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:48:02,257 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:48:02,258 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:48:02,260 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:48:02,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:02,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:47:59" (1/3) ... [2021-08-27 15:48:02,261 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44e2cb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:48:02, skipping insertion in model container [2021-08-27 15:48:02,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:02,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:47:59" (2/3) ... [2021-08-27 15:48:02,262 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44e2cb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:48:02, skipping insertion in model container [2021-08-27 15:48:02,262 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:48:02,262 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:02" (3/3) ... [2021-08-27 15:48:02,263 INFO L389 chiAutomizerObserver]: Analyzing ICFG email_spec1_product14.cil.c [2021-08-27 15:48:02,293 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:48:02,293 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:48:02,293 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:48:02,294 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:48:02,294 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:48:02,294 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:48:02,294 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:48:02,294 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:48:02,321 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 754 states, 753 states have (on average 1.7675962815405046) internal successors, (1331), 753 states have internal predecessors, (1331), 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 15:48:02,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2021-08-27 15:48:02,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:48:02,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:48:02,393 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 15:48:02,393 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:48:02,393 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:48:02,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 754 states, 753 states have (on average 1.7675962815405046) internal successors, (1331), 753 states have internal predecessors, (1331), 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 15:48:02,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2021-08-27 15:48:02,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:48:02,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:48:02,408 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 15:48:02,409 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:48:02,413 INFO L791 eck$LassoCheckResult]: Stem: 723#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(10);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(34);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(16);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(20);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(10);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(12);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(10);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(18);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(16);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string57.base, #t~string57.offset, 1);call write~init~int(115, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(10, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(21);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(30);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(9);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(25);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(30);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(25);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(44);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(44);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(9);call #t~string115.base, #t~string115.offset := #Ultimate.allocOnStack(9);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(11);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(19);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string124.base, #t~string124.offset, 1);call write~init~int(100, #t~string124.base, 1 + #t~string124.offset, 1);call write~init~int(10, #t~string124.base, 2 + #t~string124.offset, 1);call write~init~int(0, #t~string124.base, 3 + #t~string124.offset, 1);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string127.base, #t~string127.offset, 1);call write~init~int(100, #t~string127.base, 1 + #t~string127.offset, 1);call write~init~int(10, #t~string127.base, 2 + #t~string127.offset, 1);call write~init~int(0, #t~string127.base, 3 + #t~string127.offset, 1);~__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;~__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;~mail_is_sensitive~0 := -1;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~bob~0 := 0;~rjh~0 := 0;~chuck~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; 611#L-1true havoc main_#res;havoc main_#t~ret119, main_~retValue_acc~32, main_~tmp~18;havoc main_~retValue_acc~32;havoc main_~tmp~18; 497#L1597true havoc valid_product_#res;havoc valid_product_~retValue_acc~28;havoc valid_product_~retValue_acc~28;valid_product_~retValue_acc~28 := 1;valid_product_#res := valid_product_~retValue_acc~28; 332#L1605true main_#t~ret119 := valid_product_#res;main_~tmp~18 := main_#t~ret119;havoc main_#t~ret119; 247#L2342true assume 0 != main_~tmp~18;havoc setup_#t~nondet114, setup_#t~nondet116, setup_#t~nondet118, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.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_tmp3~1.base, setup_~__cil_tmp3~1.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; 696#L1104true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 8#L1110-2true 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; 515#L669true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 396#L675-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string113.base, #t~string113.offset;havoc setup_#t~nondet114;~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; 283#L1104-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 726#L1110-5true 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; 434#L669-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 563#L675-5true setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string115.base, #t~string115.offset;havoc setup_#t~nondet116;~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; 391#L1104-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 137#L1110-8true 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; 44#L669-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 415#L675-8true setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string117.base, #t~string117.offset;havoc setup_#t~nondet118; 270#L2329true havoc test_#t~nondet95, test_#t~nondet96, test_#t~nondet97, test_#t~nondet98, test_#t~nondet99, test_#t~nondet100, test_#t~nondet101, test_#t~nondet102, test_#t~nondet103, test_#t~nondet104, test_#t~nondet105, 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~16, test_~tmp___0~5, test_~tmp___1~3, test_~tmp___2~3, 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~16;havoc test_~tmp___0~5;havoc test_~tmp___1~3;havoc test_~tmp___2~3;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; 643#L2170-1true [2021-08-27 15:48:02,420 INFO L793 eck$LassoCheckResult]: Loop: 643#L2170-1true assume !false; 544#L2025true assume test_~splverifierCounter~0 < 4; 218#L2026true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 567#L2032true assume !(0 == test_~op1~0); 95#L2045true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet96;havoc test_#t~nondet96; 608#L2050true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 643#L2170-1true [2021-08-27 15:48:02,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:02,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2021-08-27 15:48:02,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:02,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030826460] [2021-08-27 15:48:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:02,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:02,736 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 15:48:02,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:48:02,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030826460] [2021-08-27 15:48:02,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030826460] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:48:02,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:48:02,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:48:02,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362302146] [2021-08-27 15:48:02,743 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:48:02,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:02,743 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2021-08-27 15:48:02,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:02,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647068490] [2021-08-27 15:48:02,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:02,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:02,751 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:48:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:02,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:48:02,823 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:02,824 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:02,824 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:02,824 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:02,824 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:48:02,825 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:02,825 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:02,825 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:02,825 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product14.cil.c_Iteration1_Loop [2021-08-27 15:48:02,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:02,825 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:02,838 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 15:48:02,845 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 15:48:02,850 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 15:48:02,855 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 15:48:02,917 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:02,918 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:48:02,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:02,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:02,921 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 15:48:02,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:48:02,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:02,944 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 15:48:02,976 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 15:48:02,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:02,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:02,981 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 15:48:02,983 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 15:48:02,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:48:02,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:03,009 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:48:03,035 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 15:48:03,035 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:03,035 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:03,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:03,036 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:03,036 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:48:03,036 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:03,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:03,036 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:03,036 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product14.cil.c_Iteration1_Loop [2021-08-27 15:48:03,036 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:03,036 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:03,037 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 15:48:03,044 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 15:48:03,050 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 15:48:03,055 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 15:48:03,135 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:03,140 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:48:03,144 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:03,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:03,145 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 15:48:03,146 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 15:48:03,148 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 15:48:03,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:48:03,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:48:03,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:48:03,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:48:03,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:48:03,159 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:48:03,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:48:03,176 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:48:03,181 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:48:03,181 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:48:03,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:03,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:03,193 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 15:48:03,195 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:48:03,195 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:48:03,196 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:48:03,196 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] [2021-08-27 15:48:03,226 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 15:48:03,261 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 15:48:03,263 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:48:03,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:03,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:48:03,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:03,643 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 15:48:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:03,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:48:03,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:03,711 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 15:48:03,723 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 15:48:03,726 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 754 states, 753 states have (on average 1.7675962815405046) internal successors, (1331), 753 states have internal predecessors, (1331), 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 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 15:48:03,978 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 754 states, 753 states have (on average 1.7675962815405046) internal successors, (1331), 753 states have internal predecessors, (1331), 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 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 3404 states and 5984 transitions. Complement of second has 7 states. [2021-08-27 15:48:03,979 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 15:48:03,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 15:48:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3432 transitions. [2021-08-27 15:48:03,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3432 transitions. Stem has 18 letters. Loop has 6 letters. [2021-08-27 15:48:03,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:03,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3432 transitions. Stem has 24 letters. Loop has 6 letters. [2021-08-27 15:48:03,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:03,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 3432 transitions. Stem has 18 letters. Loop has 12 letters. [2021-08-27 15:48:03,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:03,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3404 states and 5984 transitions. [2021-08-27 15:48:04,034 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 501 [2021-08-27 15:48:04,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3404 states to 1035 states and 1896 transitions. [2021-08-27 15:48:04,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 532 [2021-08-27 15:48:04,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 533 [2021-08-27 15:48:04,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1035 states and 1896 transitions. [2021-08-27 15:48:04,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:48:04,048 INFO L681 BuchiCegarLoop]: Abstraction has 1035 states and 1896 transitions. [2021-08-27 15:48:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states and 1896 transitions. [2021-08-27 15:48:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 534. [2021-08-27 15:48:04,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 534 states have (on average 1.8258426966292134) internal successors, (975), 533 states have internal predecessors, (975), 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 15:48:04,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 975 transitions. [2021-08-27 15:48:04,092 INFO L704 BuchiCegarLoop]: Abstraction has 534 states and 975 transitions. [2021-08-27 15:48:04,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:48:04,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:48:04,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:48:04,096 INFO L87 Difference]: Start difference. First operand 534 states and 975 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 15:48:04,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:48:04,137 INFO L93 Difference]: Finished difference Result 1048 states and 1915 transitions. [2021-08-27 15:48:04,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:48:04,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1048 states and 1915 transitions. [2021-08-27 15:48:04,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 502 [2021-08-27 15:48:04,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1048 states to 1048 states and 1915 transitions. [2021-08-27 15:48:04,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 544 [2021-08-27 15:48:04,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 544 [2021-08-27 15:48:04,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1048 states and 1915 transitions. [2021-08-27 15:48:04,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 15:48:04,154 INFO L681 BuchiCegarLoop]: Abstraction has 1048 states and 1915 transitions. [2021-08-27 15:48:04,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states and 1915 transitions. [2021-08-27 15:48:04,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 533. [2021-08-27 15:48:04,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 533 states have (on average 1.8217636022514072) internal successors, (971), 532 states have internal predecessors, (971), 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 15:48:04,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 971 transitions. [2021-08-27 15:48:04,174 INFO L704 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2021-08-27 15:48:04,174 INFO L587 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2021-08-27 15:48:04,174 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:48:04,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 533 states and 971 transitions. [2021-08-27 15:48:04,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2021-08-27 15:48:04,177 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:48:04,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:48:04,179 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:04,179 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:48:04,180 INFO L791 eck$LassoCheckResult]: Stem: 6369#ULTIMATE.startENTRY #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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(10);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(34);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(16);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(20);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(10);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(12);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(10);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(18);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(16);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string57.base, #t~string57.offset, 1);call write~init~int(115, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(10, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(21);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(30);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(9);call #t~string83.base, #t~string83.offset := #Ultimate.allocOnStack(21);call #t~string87.base, #t~string87.offset := #Ultimate.allocOnStack(30);call #t~string88.base, #t~string88.offset := #Ultimate.allocOnStack(9);call #t~string89.base, #t~string89.offset := #Ultimate.allocOnStack(25);call #t~string90.base, #t~string90.offset := #Ultimate.allocOnStack(30);call #t~string91.base, #t~string91.offset := #Ultimate.allocOnStack(9);call #t~string92.base, #t~string92.offset := #Ultimate.allocOnStack(25);call #t~string106.base, #t~string106.offset := #Ultimate.allocOnStack(44);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(44);call #t~string113.base, #t~string113.offset := #Ultimate.allocOnStack(9);call #t~string115.base, #t~string115.offset := #Ultimate.allocOnStack(9);call #t~string117.base, #t~string117.offset := #Ultimate.allocOnStack(11);call #t~string121.base, #t~string121.offset := #Ultimate.allocOnStack(19);call #t~string124.base, #t~string124.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string124.base, #t~string124.offset, 1);call write~init~int(100, #t~string124.base, 1 + #t~string124.offset, 1);call write~init~int(10, #t~string124.base, 2 + #t~string124.offset, 1);call write~init~int(0, #t~string124.base, 3 + #t~string124.offset, 1);call #t~string127.base, #t~string127.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string127.base, #t~string127.offset, 1);call write~init~int(100, #t~string127.base, 1 + #t~string127.offset, 1);call write~init~int(10, #t~string127.base, 2 + #t~string127.offset, 1);call write~init~int(0, #t~string127.base, 3 + #t~string127.offset, 1);~__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;~__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;~mail_is_sensitive~0 := -1;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~bob~0 := 0;~rjh~0 := 0;~chuck~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; 6321#L-1 havoc main_#res;havoc main_#t~ret119, main_~retValue_acc~32, main_~tmp~18;havoc main_~retValue_acc~32;havoc main_~tmp~18; 6213#L1597 havoc valid_product_#res;havoc valid_product_~retValue_acc~28;havoc valid_product_~retValue_acc~28;valid_product_~retValue_acc~28 := 1;valid_product_#res := valid_product_~retValue_acc~28; 6214#L1605 main_#t~ret119 := valid_product_#res;main_~tmp~18 := main_#t~ret119;havoc main_#t~ret119; 6328#L2342 assume 0 != main_~tmp~18;havoc setup_#t~nondet114, setup_#t~nondet116, setup_#t~nondet118, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset, setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.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_tmp3~1.base, setup_~__cil_tmp3~1.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; 6329#L1104 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 5865#L1110-2 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; 5866#L669 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5965#L675-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string113.base, #t~string113.offset;havoc setup_#t~nondet114;~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; 5966#L1104-2 assume !(1 == setClientId_~handle); 6347#L1107-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 6368#L1110-5 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; 6055#L669-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5932#L675-5 setup_~__cil_tmp2~0.base, setup_~__cil_tmp2~0.offset := #t~string115.base, #t~string115.offset;havoc setup_#t~nondet116;~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; 5958#L1104-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 5959#L1110-8 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; 5993#L669-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5994#L675-8 setup_~__cil_tmp3~1.base, setup_~__cil_tmp3~1.offset := #t~string117.base, #t~string117.offset;havoc setup_#t~nondet118; 6010#L2329 havoc test_#t~nondet95, test_#t~nondet96, test_#t~nondet97, test_#t~nondet98, test_#t~nondet99, test_#t~nondet100, test_#t~nondet101, test_#t~nondet102, test_#t~nondet103, test_#t~nondet104, test_#t~nondet105, 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~16, test_~tmp___0~5, test_~tmp___1~3, test_~tmp___2~3, 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~16;havoc test_~tmp___0~5;havoc test_~tmp___1~3;havoc test_~tmp___2~3;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; 6344#L2170-1 assume !false; 6264#L2025 [2021-08-27 15:48:04,180 INFO L793 eck$LassoCheckResult]: Loop: 6264#L2025 assume test_~splverifierCounter~0 < 4; 6265#L2026 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 6280#L2032 assume !(0 == test_~op1~0); 6123#L2045 assume !(0 == test_~op2~0); 5867#L2056 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet97;havoc test_#t~nondet97; 5869#L2061 assume 0 != test_~tmp___7~0;setClientPrivateKey_#in~handle, setClientPrivateKey_#in~value := ~rjh~0, 0;havoc setClientPrivateKey_~handle, setClientPrivateKey_~value;setClientPrivateKey_~handle := setClientPrivateKey_#in~handle;setClientPrivateKey_~value := setClientPrivateKey_#in~value; 5879#L669-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 5858#L675-11 test_~op3~0 := 1; 6062#L2170-1 assume !false; 6264#L2025 [2021-08-27 15:48:04,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:04,180 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2021-08-27 15:48:04,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:04,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270308034] [2021-08-27 15:48:04,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:04,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:04,288 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 15:48:04,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:48:04,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270308034] [2021-08-27 15:48:04,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270308034] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:48:04,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:48:04,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-27 15:48:04,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571463128] [2021-08-27 15:48:04,291 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 15:48:04,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:04,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2021-08-27 15:48:04,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:48:04,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125979178] [2021-08-27 15:48:04,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:48:04,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:48:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:04,303 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:48:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:48:04,324 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:48:04,430 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:04,430 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:04,430 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:04,430 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:04,431 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 15:48:04,431 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:04,431 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:04,431 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:04,431 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product14.cil.c_Iteration2_Loop [2021-08-27 15:48:04,431 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:04,431 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:04,433 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 15:48:04,439 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 15:48:04,444 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 15:48:04,450 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 15:48:04,456 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 15:48:04,459 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 15:48:04,464 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 15:48:04,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:04,595 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 15:48:04,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:04,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:04,596 INFO L229 MonitoredProcess]: Starting monitored process 6 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 15:48:04,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 15:48:04,604 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:04,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 15:48:04,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:04,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:04,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:04,648 INFO L229 MonitoredProcess]: Starting monitored process 7 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 15:48:04,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 15:48:04,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 15:48:04,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 15:48:04,693 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 15:48:04,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:04,698 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:48:04,699 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:48:04,699 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:48:04,699 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:48:04,699 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:48:04,699 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:04,699 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:48:04,699 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:48:04,699 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec1_product14.cil.c_Iteration2_Loop [2021-08-27 15:48:04,699 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:48:04,699 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:48:04,700 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 15:48:04,710 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 15:48:04,713 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 15:48:04,725 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 15:48:04,732 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 15:48:04,745 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 15:48:04,751 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 15:48:04,898 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:48:04,898 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:48:04,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:04,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:04,899 INFO L229 MonitoredProcess]: Starting monitored process 8 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 15:48:04,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 15:48:04,922 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 15:48:04,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:48:04,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:48:04,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:48:04,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:48:04,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:48:04,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:48:04,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:48:04,945 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:48:04,948 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 15:48:04,948 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-08-27 15:48:04,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:48:04,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:48:04,949 INFO L229 MonitoredProcess]: Starting monitored process 9 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 15:48:04,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 15:48:04,953 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:48:04,954 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 15:48:04,954 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:48:04,954 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 15:48:04,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:04,980 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 15:48:04,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:48:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:05,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:48:05,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:48:05,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 15:48:05,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:48:05,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 15:48:05,328 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 15:48:05,328 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 15:48:05,329 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 15:48:05,355 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 1039 states and 1901 transitions. Complement of second has 6 states. [2021-08-27 15:48:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 15:48:05,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 15:48:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2021-08-27 15:48:05,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 9 letters. [2021-08-27 15:48:05,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:05,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 29 letters. Loop has 9 letters. [2021-08-27 15:48:05,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:05,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 18 letters. [2021-08-27 15:48:05,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:48:05,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1901 transitions. [2021-08-27 15:48:05,365 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:05,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 0 states and 0 transitions. [2021-08-27 15:48:05,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:48:05,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:48:05,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:48:05,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:48:05,366 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:05,366 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:05,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:48:05,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 15:48:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 15:48:05,367 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 15:48:05,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:48:05,367 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-08-27 15:48:05,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-27 15:48:05,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-08-27 15:48:05,367 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:05,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 15:48:05,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:48:05,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:48:05,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:48:05,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:48:05,368 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:05,368 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:05,368 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:48:05,368 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 15:48:05,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:48:05,369 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:48:05,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:48:05,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:48:05 BoogieIcfgContainer [2021-08-27 15:48:05,373 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:48:05,374 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:48:05,374 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:48:05,374 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:48:05,375 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:48:02" (3/4) ... [2021-08-27 15:48:05,377 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:48:05,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:48:05,378 INFO L168 Benchmark]: Toolchain (without parser) took 6068.86 ms. Allocated memory was 48.2 MB in the beginning and 184.5 MB in the end (delta: 136.3 MB). Free memory was 31.5 MB in the beginning and 105.7 MB in the end (delta: -74.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:05,378 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 48.2 MB. Free memory was 30.4 MB in the beginning and 30.3 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:48:05,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.92 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 31.3 MB in the beginning and 29.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:05,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.80 ms. Allocated memory is still 58.7 MB. Free memory was 29.1 MB in the beginning and 29.5 MB in the end (delta: -435.0 kB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:05,380 INFO L168 Benchmark]: Boogie Preprocessor took 132.60 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 29.5 MB in the beginning and 40.9 MB in the end (delta: -11.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:05,381 INFO L168 Benchmark]: RCFGBuilder took 2029.09 ms. Allocated memory was 71.3 MB in the beginning and 125.8 MB in the end (delta: 54.5 MB). Free memory was 40.9 MB in the beginning and 48.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:05,381 INFO L168 Benchmark]: BuchiAutomizer took 3116.00 ms. Allocated memory was 125.8 MB in the beginning and 184.5 MB in the end (delta: 58.7 MB). Free memory was 48.7 MB in the beginning and 105.7 MB in the end (delta: -56.9 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:48:05,381 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 184.5 MB. Free memory is still 105.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:48:05,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 48.2 MB. Free memory was 30.4 MB in the beginning and 30.3 MB in the end (delta: 40.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 648.92 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 31.3 MB in the beginning and 29.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 134.80 ms. Allocated memory is still 58.7 MB. Free memory was 29.1 MB in the beginning and 29.5 MB in the end (delta: -435.0 kB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 132.60 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 29.5 MB in the beginning and 40.9 MB in the end (delta: -11.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2029.09 ms. Allocated memory was 71.3 MB in the beginning and 125.8 MB in the end (delta: 54.5 MB). Free memory was 40.9 MB in the beginning and 48.7 MB in the end (delta: -7.8 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3116.00 ms. Allocated memory was 125.8 MB in the beginning and 184.5 MB in the end (delta: 58.7 MB). Free memory was 48.7 MB in the beginning and 105.7 MB in the end (delta: -56.9 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Witness Printer took 2.84 ms. Allocated memory is still 184.5 MB. Free memory is still 105.7 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 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * op2 + 1 and consists of 5 locations. One deterministic module has affine ranking function 7 + -2 * splverifierCounter and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 51.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 533 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4082 SDtfs, 3588 SDslu, 5213 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.7ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf90 smp100 dnf134 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 52ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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 15:48:05,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...