./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product29.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer --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 4404d9a2e77d1d182d3eb816bf1bd8034541cec9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:52:30,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:52:30,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:52:31,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:52:31,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:52:31,066 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:52:31,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:52:31,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:52:31,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:52:31,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:52:31,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:52:31,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:52:31,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:52:31,080 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:52:31,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:52:31,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:52:31,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:52:31,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:52:31,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:52:31,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:52:31,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:52:31,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:52:31,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:52:31,100 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:52:31,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:52:31,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:52:31,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:52:31,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:52:31,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:52:31,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:52:31,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:52:31,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:52:31,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:52:31,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:52:31,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:52:31,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:52:31,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:52:31,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:52:31,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:52:31,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:52:31,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:52:31,120 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:52:31,150 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:52:31,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:52:31,152 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:52:31,152 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:52:31,152 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:52:31,153 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:52:31,153 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:52:31,153 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:52:31,154 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:52:31,154 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:52:31,154 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:52:31,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:52:31,155 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:52:31,155 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:52:31,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:52:31,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:52:31,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:52:31,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:52:31,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:52:31,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:52:31,158 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:52:31,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:52:31,158 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:52:31,159 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:52:31,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:52:31,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:52:31,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:52:31,160 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:52:31,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:52:31,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:52:31,161 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:52:31,161 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:52:31,163 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:52:31,163 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:/tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4404d9a2e77d1d182d3eb816bf1bd8034541cec9 [2020-11-29 20:52:31,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:52:31,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:52:31,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:52:31,447 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:52:31,448 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:52:31,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/../../sv-benchmarks/c/product-lines/email_spec9_product29.cil.c [2020-11-29 20:52:31,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/data/33f1ee70f/7555d7067a984de59b2be70e10c6bff5/FLAG7883e3706 [2020-11-29 20:52:32,345 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:52:32,347 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/sv-benchmarks/c/product-lines/email_spec9_product29.cil.c [2020-11-29 20:52:32,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/data/33f1ee70f/7555d7067a984de59b2be70e10c6bff5/FLAG7883e3706 [2020-11-29 20:52:32,545 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/data/33f1ee70f/7555d7067a984de59b2be70e10c6bff5 [2020-11-29 20:52:32,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:52:32,549 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:52:32,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:52:32,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:52:32,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:52:32,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:52:32" (1/1) ... [2020-11-29 20:52:32,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4a6c62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:32, skipping insertion in model container [2020-11-29 20:52:32,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:52:32" (1/1) ... [2020-11-29 20:52:32,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:52:32,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:52:33,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:52:33,462 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:52:33,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:52:33,719 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:52:33,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33 WrapperNode [2020-11-29 20:52:33,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:52:33,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:52:33,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:52:33,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:52:33,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:33,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:33,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:52:33,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:52:33,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:52:33,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:52:33,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:33,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:33,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:33,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:34,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:34,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:34,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... [2020-11-29 20:52:34,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:52:34,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:52:34,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:52:34,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:52:34,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2020-11-29 20:52:34,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:52:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:52:34,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:52:34,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:52:38,793 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:52:38,794 INFO L298 CfgBuilder]: Removed 629 assume(true) statements. [2020-11-29 20:52:38,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:52:38 BoogieIcfgContainer [2020-11-29 20:52:38,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:52:38,800 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:52:38,800 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:52:38,804 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:52:38,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:52:38,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:52:32" (1/3) ... [2020-11-29 20:52:38,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@767c1bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:52:38, skipping insertion in model container [2020-11-29 20:52:38,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:52:38,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:52:33" (2/3) ... [2020-11-29 20:52:38,807 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@767c1bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:52:38, skipping insertion in model container [2020-11-29 20:52:38,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:52:38,807 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:52:38" (3/3) ... [2020-11-29 20:52:38,810 INFO L373 chiAutomizerObserver]: Analyzing ICFG email_spec9_product29.cil.c [2020-11-29 20:52:38,873 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:52:38,874 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:52:38,874 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:52:38,874 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:52:38,874 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:52:38,874 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:52:38,874 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:52:38,875 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:52:38,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1004 states. [2020-11-29 20:52:39,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-11-29 20:52:39,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:52:39,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:52:39,029 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:52:39,029 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:52:39,029 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:52:39,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1004 states. [2020-11-29 20:52:39,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-11-29 20:52:39,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:52:39,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:52:39,058 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:52:39,060 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:52:39,077 INFO L794 eck$LassoCheckResult]: Stem: 354#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(10);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(12);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(10);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(18);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(16);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(16);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(17);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(17);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(17);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(10);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(34);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(16);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(20);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string78.base, #t~string78.offset, 1);call write~init~int(115, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(10, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 3 + #t~string78.offset, 1);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(30);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(9);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(21);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(30);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(9);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(21);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(30);call #t~string108.base, #t~string108.offset := #Ultimate.allocOnStack(9);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(25);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(30);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(9);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(25);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(44);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(44);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(9);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(9);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(11);call #t~string144.base, #t~string144.offset := #Ultimate.allocOnStack(19);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string147.base, #t~string147.offset, 1);call write~init~int(100, #t~string147.base, 1 + #t~string147.offset, 1);call write~init~int(10, #t~string147.base, 2 + #t~string147.offset, 1);call write~init~int(0, #t~string147.base, 3 + #t~string147.offset, 1);call #t~string150.base, #t~string150.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string150.base, #t~string150.offset, 1);call write~init~int(100, #t~string150.base, 1 + #t~string150.offset, 1);call write~init~int(10, #t~string150.base, 2 + #t~string150.offset, 1);call write~init~int(0, #t~string150.base, 3 + #t~string150.offset, 1);~__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;~in_encrypted~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~__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;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 301#L-1true havoc main_#res;havoc main_#t~nondet141, main_#t~ret142, main_~retValue_acc~43, main_~tmp~22;main_~retValue_acc~43 := main_#t~nondet141;havoc main_#t~nondet141;havoc main_~tmp~22; 865#L77true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 498#L85true main_#t~ret142 := valid_product_#res;main_~tmp~22 := main_#t~ret142;havoc main_#t~ret142; 171#L2886true assume 0 != main_~tmp~22;havoc setup_#t~nondet136, setup_#t~nondet138, setup_#t~nondet140, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset, setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset;havoc setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.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; 472#L2728true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 90#L2734-2true 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; 257#L2293true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 822#L2299-2true setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string135.base, #t~string135.offset;havoc setup_#t~nondet136;~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; 474#L2728-2true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 65#L2734-5true 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; 244#L2293-2true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 827#L2299-5true setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string137.base, #t~string137.offset;havoc setup_#t~nondet138;~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; 465#L2728-4true assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 73#L2734-8true 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; 250#L2293-4true assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 815#L2299-8true setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset := #t~string139.base, #t~string139.offset;havoc setup_#t~nondet140; 895#L2873true havoc test_#t~nondet115, test_#t~nondet116, test_#t~nondet117, test_#t~nondet118, test_#t~nondet119, test_#t~nondet120, test_#t~nondet121, test_#t~nondet122, test_#t~nondet123, test_#t~nondet124, test_#t~nondet125, 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~18, test_~tmp___0~7, test_~tmp___1~4, test_~tmp___2~4, test_~tmp___3~1, test_~tmp___4~1, 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~18;havoc test_~tmp___0~7;havoc test_~tmp___1~4;havoc test_~tmp___2~4;havoc test_~tmp___3~1;havoc test_~tmp___4~1;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; 866#L1244-1true [2020-11-29 20:52:39,078 INFO L796 eck$LassoCheckResult]: Loop: 866#L1244-1true assume !false; 335#L1099true assume test_~splverifierCounter~0 < 4; 291#L1100true test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 130#L1106true assume !(0 == test_~op1~0); 410#L1119true assume 0 == test_~op2~0;test_~tmp___8~0 := test_#t~nondet116;havoc test_#t~nondet116; 173#L1124true assume 0 != test_~tmp___8~0;test_~op2~0 := 1; 866#L1244-1true [2020-11-29 20:52:39,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:52:39,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1291925977, now seen corresponding path program 1 times [2020-11-29 20:52:39,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:52:39,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699662864] [2020-11-29 20:52:39,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:52:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:52:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:52:39,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699662864] [2020-11-29 20:52:39,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:52:39,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:52:39,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833995692] [2020-11-29 20:52:39,657 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:52:39,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:52:39,661 INFO L82 PathProgramCache]: Analyzing trace with hash 590492675, now seen corresponding path program 1 times [2020-11-29 20:52:39,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:52:39,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709735497] [2020-11-29 20:52:39,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:52:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:52:39,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:52:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:52:39,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:52:39,756 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:52:39,826 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:52:39,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:52:39,827 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:52:39,827 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:52:39,827 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:52:39,827 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:39,827 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:52:39,827 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:52:39,828 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec9_product29.cil.c_Iteration1_Loop [2020-11-29 20:52:39,828 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:52:39,828 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:52:39,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:39,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:39,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:39,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:40,024 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:52:40,025 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:40,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:52:40,046 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:40,102 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:52:40,102 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:40,119 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:52:40,157 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:52:40,157 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:52:40,158 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:52:40,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:52:40,158 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:52:40,158 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:40,158 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:52:40,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:52:40,158 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec9_product29.cil.c_Iteration1_Loop [2020-11-29 20:52:40,158 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:52:40,159 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:52:40,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:40,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:40,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:40,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:40,302 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:52:40,307 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:40,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:52:40,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:52:40,320 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:52:40,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:52:40,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:52:40,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:52:40,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:52:40,325 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:40,335 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:52:40,413 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:52:40,414 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:40,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:52:40,456 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:52:40,456 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:52:40,457 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~op2~0) = -2*ULTIMATE.start_test_~op2~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:40,499 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:52:40,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:52:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:52:40,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:52:40,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:52:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:52:40,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:52:40,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:52:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:52:40,985 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 [2020-11-29 20:52:40,986 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1004 states. Second operand 4 states. [2020-11-29 20:52:41,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1004 states.. Second operand 4 states. Result 4630 states and 8070 transitions. Complement of second has 7 states. [2020-11-29 20:52:41,446 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 [2020-11-29 20:52:41,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:52:41,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4686 transitions. [2020-11-29 20:52:41,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4686 transitions. Stem has 18 letters. Loop has 6 letters. [2020-11-29 20:52:41,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:52:41,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4686 transitions. Stem has 24 letters. Loop has 6 letters. [2020-11-29 20:52:41,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:52:41,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 4686 transitions. Stem has 18 letters. Loop has 12 letters. [2020-11-29 20:52:41,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:52:41,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4630 states and 8070 transitions. [2020-11-29 20:52:41,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 501 [2020-11-29 20:52:41,613 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4630 states to 1035 states and 1896 transitions. [2020-11-29 20:52:41,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 532 [2020-11-29 20:52:41,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 533 [2020-11-29 20:52:41,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1035 states and 1896 transitions. [2020-11-29 20:52:41,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:52:41,627 INFO L691 BuchiCegarLoop]: Abstraction has 1035 states and 1896 transitions. [2020-11-29 20:52:41,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states and 1896 transitions. [2020-11-29 20:52:41,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 534. [2020-11-29 20:52:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 534 states. [2020-11-29 20:52:41,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 975 transitions. [2020-11-29 20:52:41,727 INFO L714 BuchiCegarLoop]: Abstraction has 534 states and 975 transitions. [2020-11-29 20:52:41,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:52:41,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:52:41,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:52:41,734 INFO L87 Difference]: Start difference. First operand 534 states and 975 transitions. Second operand 3 states. [2020-11-29 20:52:41,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:52:41,824 INFO L93 Difference]: Finished difference Result 1048 states and 1915 transitions. [2020-11-29 20:52:41,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:52:41,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1048 states and 1915 transitions. [2020-11-29 20:52:41,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 502 [2020-11-29 20:52:41,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1048 states to 1048 states and 1915 transitions. [2020-11-29 20:52:41,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 544 [2020-11-29 20:52:41,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 544 [2020-11-29 20:52:41,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1048 states and 1915 transitions. [2020-11-29 20:52:41,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 20:52:41,853 INFO L691 BuchiCegarLoop]: Abstraction has 1048 states and 1915 transitions. [2020-11-29 20:52:41,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states and 1915 transitions. [2020-11-29 20:52:41,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 533. [2020-11-29 20:52:41,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2020-11-29 20:52:41,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 971 transitions. [2020-11-29 20:52:41,877 INFO L714 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-11-29 20:52:41,877 INFO L594 BuchiCegarLoop]: Abstraction has 533 states and 971 transitions. [2020-11-29 20:52:41,877 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:52:41,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 533 states and 971 transitions. [2020-11-29 20:52:41,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 251 [2020-11-29 20:52:41,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:52:41,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:52:41,885 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:52:41,886 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:52:41,886 INFO L794 eck$LassoCheckResult]: Stem: 7671#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(10);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(12);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(10);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(18);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(16);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(16);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(17);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(17);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(13);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(17);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(10);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(34);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(16);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(20);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string78.base, #t~string78.offset, 1);call write~init~int(115, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(10, #t~string78.base, 2 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 3 + #t~string78.offset, 1);call #t~string98.base, #t~string98.offset := #Ultimate.allocOnStack(30);call #t~string99.base, #t~string99.offset := #Ultimate.allocOnStack(9);call #t~string100.base, #t~string100.offset := #Ultimate.allocOnStack(21);call #t~string101.base, #t~string101.offset := #Ultimate.allocOnStack(30);call #t~string102.base, #t~string102.offset := #Ultimate.allocOnStack(9);call #t~string103.base, #t~string103.offset := #Ultimate.allocOnStack(21);call #t~string107.base, #t~string107.offset := #Ultimate.allocOnStack(30);call #t~string108.base, #t~string108.offset := #Ultimate.allocOnStack(9);call #t~string109.base, #t~string109.offset := #Ultimate.allocOnStack(25);call #t~string110.base, #t~string110.offset := #Ultimate.allocOnStack(30);call #t~string111.base, #t~string111.offset := #Ultimate.allocOnStack(9);call #t~string112.base, #t~string112.offset := #Ultimate.allocOnStack(25);call #t~string128.base, #t~string128.offset := #Ultimate.allocOnStack(44);call #t~string133.base, #t~string133.offset := #Ultimate.allocOnStack(44);call #t~string135.base, #t~string135.offset := #Ultimate.allocOnStack(9);call #t~string137.base, #t~string137.offset := #Ultimate.allocOnStack(9);call #t~string139.base, #t~string139.offset := #Ultimate.allocOnStack(11);call #t~string144.base, #t~string144.offset := #Ultimate.allocOnStack(19);call #t~string147.base, #t~string147.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string147.base, #t~string147.offset, 1);call write~init~int(100, #t~string147.base, 1 + #t~string147.offset, 1);call write~init~int(10, #t~string147.base, 2 + #t~string147.offset, 1);call write~init~int(0, #t~string147.base, 3 + #t~string147.offset, 1);call #t~string150.base, #t~string150.offset := #Ultimate.allocOnStack(4);call write~init~int(37, #t~string150.base, #t~string150.offset, 1);call write~init~int(100, #t~string150.base, 1 + #t~string150.offset, 1);call write~init~int(10, #t~string150.base, 2 + #t~string150.offset, 1);call write~init~int(0, #t~string150.base, 3 + #t~string150.offset, 1);~__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;~in_encrypted~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~__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;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0; 7349#L-1 havoc main_#res;havoc main_#t~nondet141, main_#t~ret142, main_~retValue_acc~43, main_~tmp~22;main_~retValue_acc~43 := main_#t~nondet141;havoc main_#t~nondet141;havoc main_~tmp~22; 7350#L77 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 7674#L85 main_#t~ret142 := valid_product_#res;main_~tmp~22 := main_#t~ret142;havoc main_#t~ret142; 7808#L2886 assume 0 != main_~tmp~22;havoc setup_#t~nondet136, setup_#t~nondet138, setup_#t~nondet140, setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset, setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset, setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset;havoc setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset;havoc setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset;havoc setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.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; 7809#L2728 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 7545#L2734-2 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; 7575#L2293 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7554#L2299-2 setup_~__cil_tmp1~0.base, setup_~__cil_tmp1~0.offset := #t~string135.base, #t~string135.offset;havoc setup_#t~nondet136;~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; 7555#L2728-2 assume !(1 == setClientId_~handle); 7829#L2731-2 assume 2 == setClientId_~handle;~__ste_client_idCounter1~0 := setClientId_~value; 7491#L2734-5 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; 7492#L2293-2 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7565#L2299-5 setup_~__cil_tmp2~1.base, setup_~__cil_tmp2~1.offset := #t~string137.base, #t~string137.offset;havoc setup_#t~nondet138;~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; 7568#L2728-4 assume 1 == setClientId_~handle;~__ste_client_idCounter0~0 := setClientId_~value; 7504#L2734-8 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; 7513#L2293-4 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7489#L2299-8 setup_~__cil_tmp3~5.base, setup_~__cil_tmp3~5.offset := #t~string139.base, #t~string139.offset;havoc setup_#t~nondet140; 7490#L2873 havoc test_#t~nondet115, test_#t~nondet116, test_#t~nondet117, test_#t~nondet118, test_#t~nondet119, test_#t~nondet120, test_#t~nondet121, test_#t~nondet122, test_#t~nondet123, test_#t~nondet124, test_#t~nondet125, 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~18, test_~tmp___0~7, test_~tmp___1~4, test_~tmp___2~4, test_~tmp___3~1, test_~tmp___4~1, 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~18;havoc test_~tmp___0~7;havoc test_~tmp___1~4;havoc test_~tmp___2~4;havoc test_~tmp___3~1;havoc test_~tmp___4~1;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; 7757#L1244-1 assume !false; 7573#L1099 [2020-11-29 20:52:41,886 INFO L796 eck$LassoCheckResult]: Loop: 7573#L1099 assume test_~splverifierCounter~0 < 4; 7339#L1100 test_~splverifierCounter~0 := 1 + test_~splverifierCounter~0; 7340#L1106 assume !(0 == test_~op1~0); 7577#L1119 assume !(0 == test_~op2~0); 7802#L1130 assume 0 == test_~op3~0;test_~tmp___7~0 := test_#t~nondet117;havoc test_#t~nondet117; 7806#L1135 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; 7821#L2293-6 assume 1 == setClientPrivateKey_~handle;~__ste_client_privateKey0~0 := setClientPrivateKey_~value; 7494#L2299-11 test_~op3~0 := 1; 7316#L1244-1 assume !false; 7573#L1099 [2020-11-29 20:52:41,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:52:41,887 INFO L82 PathProgramCache]: Analyzing trace with hash -953559564, now seen corresponding path program 1 times [2020-11-29 20:52:41,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:52:41,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826514182] [2020-11-29 20:52:41,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:52:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:52:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:52:42,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826514182] [2020-11-29 20:52:42,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:52:42,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:52:42,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932343241] [2020-11-29 20:52:42,047 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 20:52:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:52:42,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1296812605, now seen corresponding path program 1 times [2020-11-29 20:52:42,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:52:42,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051193804] [2020-11-29 20:52:42,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:52:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:52:42,066 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:52:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:52:42,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:52:42,082 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:52:42,176 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:52:42,176 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:52:42,176 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:52:42,176 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:52:42,176 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 20:52:42,176 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:42,176 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:52:42,176 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:52:42,176 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec9_product29.cil.c_Iteration2_Loop [2020-11-29 20:52:42,177 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:52:42,177 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:52:42,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,438 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:52:42,438 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:42,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:52:42,448 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:42,456 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 20:52:42,456 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Honda state: {ULTIMATE.start_setClientPrivateKey_#in~value=0, ULTIMATE.start_setClientPrivateKey_~value=0, ~__ste_client_privateKey0~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:42,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 20:52:42,503 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:42,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 20:52:42,559 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:42,616 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 20:52:42,620 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:52:42,620 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:52:42,620 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:52:42,620 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:52:42,620 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:52:42,620 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:42,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:52:42,620 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:52:42,620 INFO L133 ssoRankerPreferences]: Filename of dumped script: email_spec9_product29.cil.c_Iteration2_Loop [2020-11-29 20:52:42,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:52:42,621 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:52:42,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 20:52:42,953 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:52:42,953 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:42,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 20:52:42,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:52:42,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:52:42,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:52:42,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:52:42,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 20:52:42,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:52:42,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:52:42,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:42,975 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 20:52:42,975 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7e433d34-26f5-4adb-bba9-ca5369e00712/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 20:52:42,982 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 20:52:42,982 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 20:52:42,982 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:52:42,982 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_test_~splverifierCounter~0) = -2*ULTIMATE.start_test_~splverifierCounter~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:52:43,021 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 20:52:43,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:52:43,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:52:43,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:52:43,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:52:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:52:43,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:52:43,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:52:43,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:52:43,371 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 [2020-11-29 20:52:43,371 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440 Second operand 4 states. [2020-11-29 20:52:43,419 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 533 states and 971 transitions. cyclomatic complexity: 440. Second operand 4 states. Result 1039 states and 1901 transitions. Complement of second has 6 states. [2020-11-29 20:52:43,419 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 [2020-11-29 20:52:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 20:52:43,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2020-11-29 20:52:43,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 9 letters. [2020-11-29 20:52:43,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:52:43,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 29 letters. Loop has 9 letters. [2020-11-29 20:52:43,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:52:43,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 508 transitions. Stem has 20 letters. Loop has 18 letters. [2020-11-29 20:52:43,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:52:43,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1039 states and 1901 transitions. [2020-11-29 20:52:43,437 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:52:43,437 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1039 states to 0 states and 0 transitions. [2020-11-29 20:52:43,438 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:52:43,438 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:52:43,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:52:43,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:52:43,438 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:52:43,438 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:52:43,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:52:43,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:52:43,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:52:43,441 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-11-29 20:52:43,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:52:43,442 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 20:52:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:52:43,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 20:52:43,443 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:52:43,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:52:43,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:52:43,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:52:43,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:52:43,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:52:43,444 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:52:43,444 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:52:43,444 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:52:43,444 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 20:52:43,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:52:43,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:52:43,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:52:43,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:52:43 BoogieIcfgContainer [2020-11-29 20:52:43,452 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:52:43,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:52:43,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:52:43,456 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:52:43,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:52:38" (3/4) ... [2020-11-29 20:52:43,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:52:43,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:52:43,463 INFO L168 Benchmark]: Toolchain (without parser) took 10912.02 ms. Allocated memory was 83.9 MB in the beginning and 333.4 MB in the end (delta: 249.6 MB). Free memory was 52.9 MB in the beginning and 198.5 MB in the end (delta: -145.6 MB). Peak memory consumption was 105.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:52:43,463 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:52:43,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1169.96 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 52.7 MB in the beginning and 43.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:52:43,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 225.63 ms. Allocated memory is still 109.1 MB. Free memory was 43.1 MB in the beginning and 71.9 MB in the end (delta: -28.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:52:43,468 INFO L168 Benchmark]: Boogie Preprocessor took 177.05 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 59.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 20:52:43,475 INFO L168 Benchmark]: RCFGBuilder took 4673.11 ms. Allocated memory was 109.1 MB in the beginning and 234.9 MB in the end (delta: 125.8 MB). Free memory was 59.3 MB in the beginning and 191.9 MB in the end (delta: -132.6 MB). Peak memory consumption was 87.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:52:43,476 INFO L168 Benchmark]: BuchiAutomizer took 4652.97 ms. Allocated memory was 234.9 MB in the beginning and 333.4 MB in the end (delta: 98.6 MB). Free memory was 190.9 MB in the beginning and 198.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 92.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:52:43,477 INFO L168 Benchmark]: Witness Printer took 5.03 ms. Allocated memory is still 333.4 MB. Free memory is still 198.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:52:43,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1169.96 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 52.7 MB in the beginning and 43.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 225.63 ms. Allocated memory is still 109.1 MB. Free memory was 43.1 MB in the beginning and 71.9 MB in the end (delta: -28.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 177.05 ms. Allocated memory is still 109.1 MB. Free memory was 71.9 MB in the beginning and 59.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4673.11 ms. Allocated memory was 109.1 MB in the beginning and 234.9 MB in the end (delta: 125.8 MB). Free memory was 59.3 MB in the beginning and 191.9 MB in the end (delta: -132.6 MB). Peak memory consumption was 87.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4652.97 ms. Allocated memory was 234.9 MB in the beginning and 333.4 MB in the end (delta: 98.6 MB). Free memory was 190.9 MB in the beginning and 198.5 MB in the end (delta: -7.6 MB). Peak memory consumption was 92.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.03 ms. Allocated memory is still 333.4 MB. Free memory is still 198.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 -2 * splverifierCounter + 7 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 4.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 1.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1016 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.1s 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: 4914 SDtfs, 4420 SDslu, 6461 SDs, 0 SdLazy, 26 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 148ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...