./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa --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 afd40820c7a09c073d225c09c6690862ff04506300463cb312087d541b42d981 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:04:34,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:04:34,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:04:34,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:04:34,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:04:34,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:04:34,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:04:34,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:04:34,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:04:34,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:04:34,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:04:34,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:04:34,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:04:34,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:04:34,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:04:34,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:04:34,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:04:34,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:04:34,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:04:34,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:04:34,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:04:34,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:04:34,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:04:34,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:04:34,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:04:34,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:04:34,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:04:34,876 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:04:34,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:04:34,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:04:34,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:04:34,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:04:34,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:04:34,880 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:04:34,881 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:04:34,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:04:34,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:04:34,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:04:34,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:04:34,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:04:34,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:04:34,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 19:04:34,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:04:34,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:04:34,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:04:34,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:04:34,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:04:34,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:04:34,909 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:04:34,910 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 19:04:34,910 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 19:04:34,910 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 19:04:34,910 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 19:04:34,910 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 19:04:34,911 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 19:04:34,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:04:34,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:04:34,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:04:34,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:04:34,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 19:04:34,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 19:04:34,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 19:04:34,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:04:34,912 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 19:04:34,912 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:04:34,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 19:04:34,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:04:34,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:04:34,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:04:34,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:04:34,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:04:34,914 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 19:04:34,914 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_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afd40820c7a09c073d225c09c6690862ff04506300463cb312087d541b42d981 [2021-12-06 19:04:35,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:04:35,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:04:35,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:04:35,105 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:04:35,106 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:04:35,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/Ex02.c [2021-12-06 19:04:35,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/data/ccdfd0950/8c76e533bc4d4246889f98f09ab00d66/FLAGea9989687 [2021-12-06 19:04:35,544 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:04:35,545 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/sv-benchmarks/c/termination-restricted-15/Ex02.c [2021-12-06 19:04:35,550 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/data/ccdfd0950/8c76e533bc4d4246889f98f09ab00d66/FLAGea9989687 [2021-12-06 19:04:35,560 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/data/ccdfd0950/8c76e533bc4d4246889f98f09ab00d66 [2021-12-06 19:04:35,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:04:35,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:04:35,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:04:35,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:04:35,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:04:35,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2231ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35, skipping insertion in model container [2021-12-06 19:04:35,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:04:35,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:04:35,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:04:35,677 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:04:35,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:04:35,694 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:04:35,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35 WrapperNode [2021-12-06 19:04:35,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:04:35,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:04:35,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:04:35,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:04:35,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,716 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2021-12-06 19:04:35,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:04:35,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:04:35,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:04:35,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:04:35,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:04:35,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:04:35,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:04:35,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:04:35,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (1/1) ... [2021-12-06 19:04:35,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:04:35,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:04:35,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:04:35,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 19:04:35,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:04:35,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:04:35,830 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:04:35,831 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:04:35,868 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:04:35,874 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:04:35,874 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 19:04:35,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:04:35 BoogieIcfgContainer [2021-12-06 19:04:35,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:04:35,876 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 19:04:35,876 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 19:04:35,879 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 19:04:35,879 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:04:35,879 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 07:04:35" (1/3) ... [2021-12-06 19:04:35,880 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51d68b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:04:35, skipping insertion in model container [2021-12-06 19:04:35,880 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:04:35,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:04:35" (2/3) ... [2021-12-06 19:04:35,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@51d68b6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:04:35, skipping insertion in model container [2021-12-06 19:04:35,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:04:35,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:04:35" (3/3) ... [2021-12-06 19:04:35,882 INFO L388 chiAutomizerObserver]: Analyzing ICFG Ex02.c [2021-12-06 19:04:35,917 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 19:04:35,917 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 19:04:35,917 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 19:04:35,917 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 19:04:35,917 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 19:04:35,917 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 19:04:35,917 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 19:04:35,917 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 19:04:35,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:04:35,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 19:04:35,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:04:35,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:04:35,946 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:04:35,946 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 19:04:35,946 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 19:04:35,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:04:35,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 19:04:35,948 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:04:35,948 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:04:35,948 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:04:35,948 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 19:04:35,953 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 4#L10-2true [2021-12-06 19:04:35,953 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0#1 > 0); 6#L10true assume !(5 != main_~i~0#1); 4#L10-2true [2021-12-06 19:04:35,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:04:35,958 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 19:04:35,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:04:35,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916887126] [2021-12-06 19:04:35,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:04:35,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:04:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:04:36,024 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:04:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:04:36,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:04:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:04:36,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-12-06 19:04:36,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:04:36,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770366416] [2021-12-06 19:04:36,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:04:36,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:04:36,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:04:36,045 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:04:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:04:36,048 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:04:36,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:04:36,050 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-12-06 19:04:36,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:04:36,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007369074] [2021-12-06 19:04:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:04:36,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:04:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:04:36,056 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:04:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:04:36,059 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:04:36,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 07:04:36 BoogieIcfgContainer [2021-12-06 19:04:36,109 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 19:04:36,109 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:04:36,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:04:36,110 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:04:36,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:04:35" (3/4) ... [2021-12-06 19:04:36,113 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-06 19:04:36,142 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 19:04:36,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:04:36,144 INFO L158 Benchmark]: Toolchain (without parser) took 580.10ms. Allocated memory is still 109.1MB. Free memory was 86.1MB in the beginning and 50.9MB in the end (delta: 35.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-12-06 19:04:36,145 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:04:36,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 130.17ms. Allocated memory is still 109.1MB. Free memory was 85.8MB in the beginning and 77.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 19:04:36,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.52ms. Allocated memory is still 109.1MB. Free memory was 77.2MB in the beginning and 75.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:04:36,147 INFO L158 Benchmark]: Boogie Preprocessor took 12.57ms. Allocated memory is still 109.1MB. Free memory was 75.9MB in the beginning and 74.9MB in the end (delta: 987.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:04:36,148 INFO L158 Benchmark]: RCFGBuilder took 144.89ms. Allocated memory is still 109.1MB. Free memory was 74.9MB in the beginning and 67.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 19:04:36,149 INFO L158 Benchmark]: BuchiAutomizer took 232.56ms. Allocated memory is still 109.1MB. Free memory was 66.9MB in the beginning and 52.5MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 19:04:36,150 INFO L158 Benchmark]: Witness Printer took 33.30ms. Allocated memory is still 109.1MB. Free memory was 52.3MB in the beginning and 50.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:04:36,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 73.4MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 130.17ms. Allocated memory is still 109.1MB. Free memory was 85.8MB in the beginning and 77.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.52ms. Allocated memory is still 109.1MB. Free memory was 77.2MB in the beginning and 75.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.57ms. Allocated memory is still 109.1MB. Free memory was 75.9MB in the beginning and 74.9MB in the end (delta: 987.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 144.89ms. Allocated memory is still 109.1MB. Free memory was 74.9MB in the beginning and 67.1MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 232.56ms. Allocated memory is still 109.1MB. Free memory was 66.9MB in the beginning and 52.5MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 33.30ms. Allocated memory is still 109.1MB. Free memory was 52.3MB in the beginning and 50.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: 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: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=5, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6360c5e=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i > 0 [L10] COND FALSE !(i != 5) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-06 19:04:36,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d70d8826-66ff-43f8-b84f-d7b0909a9a35/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)