./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i --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_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/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 10989cc26eec6b69c73a920ae872e2b45d43bffe ................................................................................................................................................................................................................................................................................................................................................................................ 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 20:08:20,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:08:20,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:08:20,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:08:20,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:08:20,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:08:20,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:08:20,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:08:20,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:08:20,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:08:20,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:08:20,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:08:20,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:08:20,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:08:20,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:08:20,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:08:20,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:08:20,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:08:20,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:08:20,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:08:20,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:08:20,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:08:20,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:08:20,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:08:20,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:08:20,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:08:20,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:08:20,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:08:20,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:08:20,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:08:20,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:08:20,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:08:20,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:08:20,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:08:20,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:08:20,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:08:20,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:08:20,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:08:20,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:08:20,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:08:20,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:08:20,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 20:08:20,939 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:08:20,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:08:20,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:08:20,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:08:20,945 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:08:20,946 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 20:08:20,946 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 20:08:20,946 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 20:08:20,946 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 20:08:20,947 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 20:08:20,948 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 20:08:20,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:08:20,949 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:08:20,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:08:20,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:08:20,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:08:20,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:08:20,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 20:08:20,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 20:08:20,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 20:08:20,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:08:20,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:08:20,951 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 20:08:20,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:08:20,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 20:08:20,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:08:20,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:08:20,952 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 20:08:20,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:08:20,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:08:20,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:08:20,954 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 20:08:20,955 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 20:08:20,956 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_c88c2feb-fa3b-46be-94d2-6a3f07668116/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10989cc26eec6b69c73a920ae872e2b45d43bffe [2020-11-29 20:08:21,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:08:21,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:08:21,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:08:21,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:08:21,348 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:08:21,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/../../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2020-11-29 20:08:21,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/data/b5e611a36/b5094e0c2ab54b72ab2e83ea5d87c305/FLAG8c8bf5db8 [2020-11-29 20:08:21,885 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:08:21,885 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2020-11-29 20:08:21,892 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/data/b5e611a36/b5094e0c2ab54b72ab2e83ea5d87c305/FLAG8c8bf5db8 [2020-11-29 20:08:22,268 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/bin/uautomizer/data/b5e611a36/b5094e0c2ab54b72ab2e83ea5d87c305 [2020-11-29 20:08:22,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:08:22,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:08:22,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:08:22,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:08:22,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:08:22,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bfc03db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22, skipping insertion in model container [2020-11-29 20:08:22,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:08:22,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:08:22,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:08:22,551 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:08:22,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:08:22,591 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:08:22,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22 WrapperNode [2020-11-29 20:08:22,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:08:22,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:08:22,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:08:22,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:08:22,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:08:22,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:08:22,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:08:22,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:08:22,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... [2020-11-29 20:08:22,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:08:22,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:08:22,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:08:22,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:08:22,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/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 20:08:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:08:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-11-29 20:08:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:08:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:08:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:08:22,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:08:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:08:22,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:08:23,132 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:08:23,132 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 20:08:23,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:23 BoogieIcfgContainer [2020-11-29 20:08:23,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:08:23,148 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 20:08:23,149 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 20:08:23,152 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 20:08:23,153 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:08:23,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 08:08:22" (1/3) ... [2020-11-29 20:08:23,155 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@186a4517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:08:23, skipping insertion in model container [2020-11-29 20:08:23,155 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:08:23,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:22" (2/3) ... [2020-11-29 20:08:23,156 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@186a4517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 08:08:23, skipping insertion in model container [2020-11-29 20:08:23,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 20:08:23,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:23" (3/3) ... [2020-11-29 20:08:23,158 INFO L373 chiAutomizerObserver]: Analyzing ICFG array_2-2-simple.i [2020-11-29 20:08:23,226 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 20:08:23,227 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 20:08:23,227 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 20:08:23,227 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:08:23,227 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:08:23,227 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 20:08:23,227 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:08:23,228 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 20:08:23,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-29 20:08:23,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:08:23,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:08:23,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:08:23,274 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 20:08:23,275 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:08:23,275 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 20:08:23,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-11-29 20:08:23,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 20:08:23,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 20:08:23,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 20:08:23,280 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 20:08:23,280 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 20:08:23,289 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12); 6#L-1true havoc main_#res;havoc main_#t~mem4, main_#t~post3, main_#t~mem5, main_#t~mem6, main_~#A~0.base, main_~#A~0.offset, main_~#B~0.base, main_~#B~0.offset, main_~i~0, main_~tmp~0;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(8192);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, main_~#A~0.base);call write~unchecked~int(0, main_~#A~0.base, main_~#A~0.offset, 4);call main_~#B~0.base, main_~#B~0.offset := #Ultimate.allocOnStack(8192);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, main_~#B~0.base);call write~unchecked~int(0, main_~#B~0.base, main_~#B~0.offset, 4);havoc main_~i~0;havoc main_~tmp~0;main_~i~0 := 0; 8#L24-3true [2020-11-29 20:08:23,290 INFO L796 eck$LassoCheckResult]: Loop: 8#L24-3true assume !!(main_~i~0 < 2048);call main_#t~mem4 := read~int(main_~#A~0.base, main_~#A~0.offset + 4 * main_~i~0, 4);main_~tmp~0 := main_#t~mem4;havoc main_#t~mem4;call write~int(main_~tmp~0, main_~#B~0.base, main_~#B~0.offset + 4 * main_~i~0, 4); 10#L24-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8#L24-3true [2020-11-29 20:08:23,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:08:23,305 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 20:08:23,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:08:23,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385185333] [2020-11-29 20:08:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:08:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:08:23,431 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:08:23,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:08:23,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:08:23,477 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:08:23,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:08:23,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-11-29 20:08:23,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:08:23,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348773858] [2020-11-29 20:08:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:08:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:08:23,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:08:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:08:23,502 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:08:23,506 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:08:23,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:08:23,508 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-11-29 20:08:23,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:08:23,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814913988] [2020-11-29 20:08:23,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:08:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:08:23,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:08:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:08:23,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:08:23,604 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:08:23,734 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-11-29 20:08:24,244 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-11-29 20:08:24,449 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-11-29 20:08:24,467 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 20:08:24,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 20:08:24,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 20:08:24,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 20:08:24,469 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 20:08:24,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:08:24,470 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 20:08:24,470 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 20:08:24,470 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_2-2-simple.i_Iteration1_Lasso [2020-11-29 20:08:24,471 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 20:08:24,471 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 20:08:24,502 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 20:08:24,510 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 20:08:24,838 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-11-29 20:08:24,945 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 20:08:24,950 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 20:08:24,959 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 20:08:24,964 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 20:08:24,969 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 20:08:24,974 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 20:08:24,979 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 20:08:25,415 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 20:08:25,421 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/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 20:08:25,440 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 20:08:25,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:08:25,446 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 20:08:25,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:08:25,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:08:25,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:08:25,450 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 20:08:25,450 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 20:08:25,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/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 20:08:25,509 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 20:08:25,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 20:08:25,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 20:08:25,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 20:08:25,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:08:25,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 20:08:25,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 20:08:25,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 20:08:25,660 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-29 20:08:25,660 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c88c2feb-fa3b-46be-94d2-6a3f07668116/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 20:08:25,693 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 20:08:25,706 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 20:08:25,707 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 20:08:25,708 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1) = -8*ULTIMATE.start_main_~i~0 + 4095*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 Supporting invariants [] [2020-11-29 20:08:25,810 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2020-11-29 20:08:25,819 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 20:08:25,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:08:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:08:25,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:08:25,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:08:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:08:25,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 20:08:25,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:08:25,959 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 20:08:25,984 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 20:08:25,985 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2020-11-29 20:08:26,052 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 28 states and 36 transitions. Complement of second has 8 states. [2020-11-29 20:08:26,053 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 20:08:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 20:08:26,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2020-11-29 20:08:26,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-29 20:08:26,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:08:26,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 20:08:26,058 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:08:26,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-29 20:08:26,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 20:08:26,060 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2020-11-29 20:08:26,063 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:08:26,066 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2020-11-29 20:08:26,067 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 20:08:26,067 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 20:08:26,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 20:08:26,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 20:08:26,068 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:08:26,068 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:08:26,069 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:08:26,069 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 20:08:26,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:08:26,069 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 20:08:26,069 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 20:08:26,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 08:08:26 BoogieIcfgContainer [2020-11-29 20:08:26,075 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 20:08:26,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:08:26,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:08:26,076 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:08:26,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:23" (3/4) ... [2020-11-29 20:08:26,080 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:08:26,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:08:26,082 INFO L168 Benchmark]: Toolchain (without parser) took 3808.65 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 62.2 MB in the beginning and 45.0 MB in the end (delta: 17.2 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:26,082 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 98.6 MB. Free memory is still 78.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:26,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.68 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 75.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:26,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.65 ms. Allocated memory is still 98.6 MB. Free memory was 75.0 MB in the beginning and 73.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:26,085 INFO L168 Benchmark]: Boogie Preprocessor took 53.43 ms. Allocated memory is still 98.6 MB. Free memory was 73.4 MB in the beginning and 72.4 MB in the end (delta: 951.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:26,085 INFO L168 Benchmark]: RCFGBuilder took 457.82 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 59.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:26,086 INFO L168 Benchmark]: BuchiAutomizer took 2926.94 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 46.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:26,087 INFO L168 Benchmark]: Witness Printer took 4.37 ms. Allocated memory is still 119.5 MB. Free memory was 46.1 MB in the beginning and 45.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:26,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 98.6 MB. Free memory is still 78.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.68 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 75.0 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.65 ms. Allocated memory is still 98.6 MB. Free memory was 75.0 MB in the beginning and 73.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.43 ms. Allocated memory is still 98.6 MB. Free memory was 73.4 MB in the beginning and 72.4 MB in the end (delta: 951.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 457.82 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 59.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2926.94 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 46.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.37 ms. Allocated memory is still 119.5 MB. Free memory was 46.1 MB in the beginning and 45.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -8 * i + 4095 * unknown-#length-unknown[A] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 6 SDslu, 6 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital232 mio100 ax100 hnf100 lsp96 ukn54 mio100 lsp57 div100 bol100 ite100 ukn100 eq171 hnf80 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 208ms VariablesStem: 6 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...