./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/array04_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/array04_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC --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 64bit --witnessprinter.graph.data.programhash ede187b1b02320b6ac4ee708403ec99e5631a2e0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:25:27,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:25:27,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:25:27,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:25:27,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:25:27,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:25:27,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:25:27,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:25:27,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:25:27,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:25:27,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:25:27,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:25:27,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:25:27,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:25:27,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:25:27,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:25:27,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:25:27,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:25:27,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:25:27,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:25:27,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:25:27,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:25:27,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:25:27,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:25:27,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:25:27,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:25:27,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:25:27,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:25:27,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:25:27,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:25:27,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:25:27,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:25:27,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:25:27,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:25:27,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:25:27,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:25:27,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:25:27,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:25:27,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:25:27,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:25:27,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:25:27,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:25:27,943 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:25:27,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:25:27,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:25:27,946 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:25:27,946 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:25:27,946 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:25:27,946 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:25:27,947 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:25:27,947 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:25:27,947 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:25:27,947 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:25:27,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:25:27,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:25:27,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:25:27,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:25:27,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:25:27,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:25:27,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:25:27,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:25:27,950 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:25:27,950 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:25:27,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:25:27,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:25:27,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:25:27,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:25:27,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:25:27,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:25:27,953 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:25:27,953 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_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ede187b1b02320b6ac4ee708403ec99e5631a2e0 [2021-10-11 00:25:28,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:25:28,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:25:28,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:25:28,220 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:25:28,221 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:25:28,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-15/array04_alloca.i [2021-10-11 00:25:28,293 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/data/d361d4eb3/c9b2c020c81849ccb7e1c7906f99e6f0/FLAG15a7a5ad4 [2021-10-11 00:25:28,886 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:25:28,887 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/sv-benchmarks/c/termination-15/array04_alloca.i [2021-10-11 00:25:28,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/data/d361d4eb3/c9b2c020c81849ccb7e1c7906f99e6f0/FLAG15a7a5ad4 [2021-10-11 00:25:29,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/data/d361d4eb3/c9b2c020c81849ccb7e1c7906f99e6f0 [2021-10-11 00:25:29,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:25:29,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:25:29,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:29,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:25:29,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:25:29,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd60d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29, skipping insertion in model container [2021-10-11 00:25:29,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:25:29,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:25:29,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:29,608 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:25:29,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:29,725 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:25:29,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29 WrapperNode [2021-10-11 00:25:29,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:29,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:29,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:25:29,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:25:29,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:29,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:25:29,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:25:29,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:25:29,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... [2021-10-11 00:25:29,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:25:29,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:25:29,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:25:29,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:25:29,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:25:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:25:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:25:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:25:29,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:25:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:25:29,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:25:30,149 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:25:30,149 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 00:25:30,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:30 BoogieIcfgContainer [2021-10-11 00:25:30,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:25:30,152 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:25:30,152 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:25:30,155 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:25:30,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:25:30,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:25:29" (1/3) ... [2021-10-11 00:25:30,158 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17b9a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:25:30, skipping insertion in model container [2021-10-11 00:25:30,158 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:25:30,158 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:29" (2/3) ... [2021-10-11 00:25:30,159 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17b9a06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:25:30, skipping insertion in model container [2021-10-11 00:25:30,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:25:30,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:30" (3/3) ... [2021-10-11 00:25:30,160 INFO L389 chiAutomizerObserver]: Analyzing ICFG array04_alloca.i [2021-10-11 00:25:30,206 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:25:30,206 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:25:30,206 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:25:30,206 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:25:30,206 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:25:30,206 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:25:30,206 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:25:30,207 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:25:30,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2021-10-11 00:25:30,239 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-10-11 00:25:30,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:25:30,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:25:30,246 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-11 00:25:30,246 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:25:30,247 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:25:30,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2021-10-11 00:25:30,269 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2021-10-11 00:25:30,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:25:30,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:25:30,270 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-11 00:25:30,270 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:25:30,278 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 14#L367true assume !(main_~length~0 < 1); 5#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 11#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 15#L370-3true [2021-10-11 00:25:30,279 INFO L796 eck$LassoCheckResult]: Loop: 15#L370-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208; 13#L370-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 15#L370-3true [2021-10-11 00:25:30,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:30,286 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-10-11 00:25:30,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:30,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517323941] [2021-10-11 00:25:30,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:30,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:30,426 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:30,446 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:30,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:30,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-10-11 00:25:30,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:30,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388970310] [2021-10-11 00:25:30,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:30,462 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:30,469 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:30,473 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:30,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-10-11 00:25:30,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:30,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096631022] [2021-10-11 00:25:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:30,497 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:30,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:30,520 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:30,752 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:25:30,753 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:25:30,753 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:25:30,753 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:25:30,753 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:25:30,754 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:30,754 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:25:30,754 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:25:30,754 INFO L133 ssoRankerPreferences]: Filename of dumped script: array04_alloca.i_Iteration1_Lasso [2021-10-11 00:25:30,754 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:25:30,755 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:25:30,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:30,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:30,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:30,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:30,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:30,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:30,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:30,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:25:31,157 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:25:31,161 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:25:31,176 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 [2021-10-11 00:25:31,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:25:31,179 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:25:31,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:25:31,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:25:31,180 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:25:31,184 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:25:31,184 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:31,193 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:31,318 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 [2021-10-11 00:25:31,320 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:25:31,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:25:31,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:25:31,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:25:31,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:25:31,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:25:31,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:25:31,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:25:31,368 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 [2021-10-11 00:25:31,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:25:31,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:25:31,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:25:31,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:25:31,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:25:31,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:31,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:31,424 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 [2021-10-11 00:25:31,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:25:31,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:25:31,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:25:31,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:25:31,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:25:31,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:25:31,470 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:25:31,542 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-11 00:25:31,543 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 12 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:25:31,578 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:25:31,602 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-11 00:25:31,602 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:25:31,603 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~arr~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1) = -4*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~arr~0.offset + 2*v_rep(select #length ULTIMATE.start_main_#t~malloc206.base)_1 Supporting invariants [] [2021-10-11 00:25:31,652 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2021-10-11 00:25:31,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:31,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:31,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:25:31,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:31,793 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:25:31,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:25:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:31,861 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-11 00:25:31,862 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 4 states. [2021-10-11 00:25:31,937 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 4 states. Result 27 states and 37 transitions. Complement of second has 9 states. [2021-10-11 00:25:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-11 00:25:31,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-11 00:25:31,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2021-10-11 00:25:31,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-11 00:25:31,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:25:31,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-11 00:25:31,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:25:31,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-11 00:25:31,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:25:31,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 37 transitions. [2021-10-11 00:25:31,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:25:31,951 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 10 states and 13 transitions. [2021-10-11 00:25:31,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-11 00:25:31,953 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-11 00:25:31,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-11 00:25:31,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:25:31,954 INFO L692 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-11 00:25:31,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-11 00:25:31,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-11 00:25:31,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 00:25:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-11 00:25:31,983 INFO L715 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-11 00:25:31,983 INFO L595 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-11 00:25:31,983 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:25:31,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-11 00:25:31,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:25:31,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:25:31,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:25:31,985 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:31,985 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:25:31,985 INFO L794 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 108#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 109#L367 assume !(main_~length~0 < 1); 113#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 114#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 115#L370-3 assume !(main_~i~0 < main_~length~0); 111#L370-4 main_~j~0 := 0; 110#L374-2 [2021-10-11 00:25:31,986 INFO L796 eck$LassoCheckResult]: Loop: 110#L374-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_~j~0 := main_~j~0 + main_#t~mem209;havoc main_#t~mem209; 110#L374-2 [2021-10-11 00:25:31,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:31,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2021-10-11 00:25:31,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:31,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977213739] [2021-10-11 00:25:31,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:25:32,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:25:32,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977213739] [2021-10-11 00:25:32,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:25:32,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:25:32,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228106880] [2021-10-11 00:25:32,064 INFO L799 eck$LassoCheckResult]: stem already infeasible [2021-10-11 00:25:32,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:32,065 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 1 times [2021-10-11 00:25:32,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:32,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072971090] [2021-10-11 00:25:32,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:32,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:32,076 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:32,078 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:32,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:25:32,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:25:32,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:25:32,129 INFO L87 Difference]: Start difference. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 4 states. [2021-10-11 00:25:32,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:25:32,182 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2021-10-11 00:25:32,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:25:32,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2021-10-11 00:25:32,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:25:32,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 13 transitions. [2021-10-11 00:25:32,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-11 00:25:32,185 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-11 00:25:32,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2021-10-11 00:25:32,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:25:32,185 INFO L692 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-11 00:25:32,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2021-10-11 00:25:32,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-11 00:25:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 00:25:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-11 00:25:32,187 INFO L715 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-11 00:25:32,187 INFO L595 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-11 00:25:32,187 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-11 00:25:32,187 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-10-11 00:25:32,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:25:32,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:25:32,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:25:32,189 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:25:32,189 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:25:32,189 INFO L794 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 137#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~post207, main_#t~mem209, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 138#L367 assume !(main_~length~0 < 1); 141#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 142#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 143#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208; 144#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 145#L370-3 assume !(main_~i~0 < main_~length~0); 139#L370-4 main_~j~0 := 0; 136#L374-2 [2021-10-11 00:25:32,189 INFO L796 eck$LassoCheckResult]: Loop: 136#L374-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4);main_~j~0 := main_~j~0 + main_#t~mem209;havoc main_#t~mem209; 136#L374-2 [2021-10-11 00:25:32,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:32,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1182969107, now seen corresponding path program 1 times [2021-10-11 00:25:32,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:32,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107814680] [2021-10-11 00:25:32,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:32,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:32,248 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:32,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:32,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:32,262 INFO L82 PathProgramCache]: Analyzing trace with hash 68, now seen corresponding path program 2 times [2021-10-11 00:25:32,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:32,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435909226] [2021-10-11 00:25:32,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:32,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:32,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:32,296 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:32,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:25:32,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1982663310, now seen corresponding path program 1 times [2021-10-11 00:25:32,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:25:32,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939419451] [2021-10-11 00:25:32,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:25:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:32,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:25:32,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:25:32,353 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:25:32,535 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2021-10-11 00:25:32,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:25:32 BoogieIcfgContainer [2021-10-11 00:25:32,648 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:25:32,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:25:32,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:25:32,652 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:25:32,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:30" (3/4) ... [2021-10-11 00:25:32,657 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-11 00:25:32,692 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_502a867a-9380-4dc8-a509-e386eb03117a/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:25:32,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:25:32,694 INFO L168 Benchmark]: Toolchain (without parser) took 3512.31 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 65.3 MB in the beginning and 59.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:32,694 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:32,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.66 ms. Allocated memory is still 96.5 MB. Free memory was 65.1 MB in the beginning and 57.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:32,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.89 ms. Allocated memory is still 96.5 MB. Free memory was 57.8 MB in the beginning and 56.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:32,696 INFO L168 Benchmark]: Boogie Preprocessor took 42.19 ms. Allocated memory is still 96.5 MB. Free memory was 56.1 MB in the beginning and 55.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:32,697 INFO L168 Benchmark]: RCFGBuilder took 331.33 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 54.7 MB in the beginning and 98.7 MB in the end (delta: -44.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:32,698 INFO L168 Benchmark]: BuchiAutomizer took 2496.54 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 60.9 MB in the end (delta: 37.8 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:32,698 INFO L168 Benchmark]: Witness Printer took 43.17 ms. Allocated memory is still 123.7 MB. Free memory was 60.9 MB in the beginning and 59.9 MB in the end (delta: 998.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:32,702 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 96.5 MB. Free memory is still 51.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 541.66 ms. Allocated memory is still 96.5 MB. Free memory was 65.1 MB in the beginning and 57.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.89 ms. Allocated memory is still 96.5 MB. Free memory was 57.8 MB in the beginning and 56.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.19 ms. Allocated memory is still 96.5 MB. Free memory was 56.1 MB in the beginning and 55.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 331.33 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 54.7 MB in the beginning and 98.7 MB in the end (delta: -44.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2496.54 ms. Allocated memory is still 123.7 MB. Free memory was 98.7 MB in the beginning and 60.9 MB in the end (delta: 37.8 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. * Witness Printer took 43.17 ms. Allocated memory is still 123.7 MB. Free memory was 60.9 MB in the beginning and 59.9 MB in the end (delta: 998.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -4 * i + -1 * arr + 2 * unknown-#length-unknown[__builtin_alloca(length*sizeof(int))] and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 15 SDtfs, 21 SDslu, 11 SDs, 0 SdLazy, 29 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital99 mio100 ax100 hnf100 lsp93 ukn82 mio100 lsp64 div100 bol100 ite100 ukn100 eq167 hnf91 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 374]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, \result=0, NULL=1, arr=2, arr=0, i=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cfb750f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b9d9186=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6135258f=0, length=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@241d03f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6135258f=2, j=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@208bc17e=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 374]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); [L369] COND FALSE !(!arr) [L370] i=0 [L370] COND TRUE i