./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhilePart.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhilePart.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN --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 615cc94dba3abc367f303da703fd664b36c304d01707dbbe6611a7311b8842d6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:56:43,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:56:43,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:56:43,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:56:43,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:56:43,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:56:43,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:56:43,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:56:43,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:56:43,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:56:43,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:56:43,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:56:43,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:56:43,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:56:43,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:56:43,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:56:43,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:56:43,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:56:43,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:56:43,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:56:43,587 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:56:43,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:56:43,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:56:43,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:56:43,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:56:43,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:56:43,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:56:43,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:56:43,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:56:43,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:56:43,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:56:43,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:56:43,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:56:43,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:56:43,604 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:56:43,604 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:56:43,605 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:56:43,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:56:43,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:56:43,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:56:43,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:56:43,609 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 10:56:43,638 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:56:43,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:56:43,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:56:43,639 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:56:43,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:56:43,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:56:43,641 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:56:43,641 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 10:56:43,641 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 10:56:43,641 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 10:56:43,642 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 10:56:43,642 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 10:56:43,642 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 10:56:43,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:56:43,643 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:56:43,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:56:43,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:56:43,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 10:56:43,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 10:56:43,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 10:56:43,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:56:43,645 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 10:56:43,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:56:43,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 10:56:43,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:56:43,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:56:43,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:56:43,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:56:43,648 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 10:56:43,648 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_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 615cc94dba3abc367f303da703fd664b36c304d01707dbbe6611a7311b8842d6 [2022-11-20 10:56:43,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:56:43,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:56:43,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:56:43,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:56:43,979 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:56:43,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-restricted-15/WhilePart.c [2022-11-20 10:56:47,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:56:47,574 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:56:47,574 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/sv-benchmarks/c/termination-restricted-15/WhilePart.c [2022-11-20 10:56:47,581 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/data/44b16d07b/25398c75f7134ce49d697d39866139e5/FLAG4bf1c2501 [2022-11-20 10:56:47,600 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/data/44b16d07b/25398c75f7134ce49d697d39866139e5 [2022-11-20 10:56:47,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:56:47,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:56:47,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:47,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:56:47,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:56:47,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12dc174b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47, skipping insertion in model container [2022-11-20 10:56:47,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:56:47,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:56:47,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:47,814 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:56:47,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:47,842 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:56:47,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47 WrapperNode [2022-11-20 10:56:47,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:47,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:47,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:56:47,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:56:47,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,880 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13 [2022-11-20 10:56:47,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:47,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:56:47,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:56:47,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:56:47,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,893 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,908 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,910 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:56:47,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:56:47,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:56:47,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:56:47,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (1/1) ... [2022-11-20 10:56:47,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 10:56:47,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:47,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 10:56:47,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 10:56:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:56:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:56:48,115 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:56:48,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:56:48,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:56:48,215 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:56:48,216 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 10:56:48,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:48 BoogieIcfgContainer [2022-11-20 10:56:48,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:56:48,221 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 10:56:48,221 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 10:56:48,226 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 10:56:48,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:56:48,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:56:47" (1/3) ... [2022-11-20 10:56:48,230 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bd76dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:56:48, skipping insertion in model container [2022-11-20 10:56:48,230 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:56:48,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:47" (2/3) ... [2022-11-20 10:56:48,232 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bd76dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:56:48, skipping insertion in model container [2022-11-20 10:56:48,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 10:56:48,233 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:48" (3/3) ... [2022-11-20 10:56:48,234 INFO L332 chiAutomizerObserver]: Analyzing ICFG WhilePart.c [2022-11-20 10:56:48,324 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 10:56:48,324 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 10:56:48,325 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 10:56:48,325 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 10:56:48,325 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 10:56:48,325 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 10:56:48,326 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 10:56:48,326 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 10:56:48,331 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) [2022-11-20 10:56:48,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:56:48,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:56:48,355 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:56:48,361 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:56:48,362 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:56:48,362 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 10:56:48,363 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) [2022-11-20 10:56:48,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-20 10:56:48,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 10:56:48,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 10:56:48,365 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-20 10:56:48,365 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 10:56:48,375 INFO L748 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#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; 3#L10-2true [2022-11-20 10:56:48,376 INFO L750 eck$LassoCheckResult]: Loop: 3#L10-2true assume !!(main_~i~0#1 > 5); 5#L10true assume !(main_~i~0#1 < 10); 3#L10-2true [2022-11-20 10:56:48,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:48,383 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-20 10:56:48,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:48,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342686156] [2022-11-20 10:56:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:48,521 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:56:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:48,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:56:48,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:48,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-20 10:56:48,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:48,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812965821] [2022-11-20 10:56:48,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:48,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:48,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:56:48,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:48,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:56:48,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:48,613 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-20 10:56:48,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:48,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241910001] [2022-11-20 10:56:48,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:48,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:48,628 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:56:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:48,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:56:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:48,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:56:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:56:48,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:56:48 BoogieIcfgContainer [2022-11-20 10:56:48,807 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 10:56:48,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 10:56:48,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 10:56:48,809 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 10:56:48,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:48" (3/4) ... [2022-11-20 10:56:48,813 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 10:56:48,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 10:56:48,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 10:56:48,891 INFO L158 Benchmark]: Toolchain (without parser) took 1284.65ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 70.6MB in the end (delta: 37.3MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 10:56:48,892 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 153.1MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:56:48,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.39ms. Allocated memory is still 153.1MB. Free memory was 107.5MB in the beginning and 98.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:56:48,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.46ms. Allocated memory is still 153.1MB. Free memory was 98.6MB in the beginning and 97.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 10:56:48,908 INFO L158 Benchmark]: Boogie Preprocessor took 29.14ms. Allocated memory is still 153.1MB. Free memory was 97.4MB in the beginning and 96.5MB in the end (delta: 884.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:56:48,909 INFO L158 Benchmark]: RCFGBuilder took 306.29ms. Allocated memory is still 153.1MB. Free memory was 96.5MB in the beginning and 88.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 10:56:48,910 INFO L158 Benchmark]: BuchiAutomizer took 586.89ms. Allocated memory is still 153.1MB. Free memory was 87.7MB in the beginning and 72.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 10:56:48,910 INFO L158 Benchmark]: Witness Printer took 81.02ms. Allocated memory is still 153.1MB. Free memory was 72.2MB in the beginning and 70.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 10:56:48,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 153.1MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.39ms. Allocated memory is still 153.1MB. Free memory was 107.5MB in the beginning and 98.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.46ms. Allocated memory is still 153.1MB. Free memory was 98.6MB in the beginning and 97.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.14ms. Allocated memory is still 153.1MB. Free memory was 97.4MB in the beginning and 96.5MB in the end (delta: 884.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.29ms. Allocated memory is still 153.1MB. Free memory was 96.5MB in the beginning and 88.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 586.89ms. Allocated memory is still 153.1MB. Free memory was 87.7MB in the beginning and 72.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 81.02ms. Allocated memory is still 153.1MB. Free memory was 72.2MB in the beginning and 70.6MB in the end (delta: 1.6MB). There was no memory consumed. 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 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() Loop: [L9] COND TRUE i > 5 [L10] COND FALSE !(i < 10) End of lasso representation. - 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 > 5 [L10] COND FALSE !(i < 10) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 10:56:48,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f29b1b62-0f94-4be2-bdd2-80b9ea821185/bin/uautomizer-ug76WZFUDN/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)