./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c --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_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/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_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/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_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/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 d8654406b0017787fa4ace126fd130560d0ff458 ............................................................................................................................................................................................................................................................................ 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 00:31:58,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:58,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:58,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:58,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:58,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:58,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:58,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:58,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:58,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:58,906 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:58,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:58,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:58,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:58,913 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:58,916 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:58,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:58,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:58,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:58,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:58,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:58,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:58,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:58,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:58,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:58,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:58,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:58,950 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:58,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:58,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:58,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:58,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:58,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:58,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:58,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:58,959 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:58,960 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:58,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:58,960 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:58,961 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:58,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:58,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:31:59,005 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:59,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:59,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:59,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:59,014 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:59,014 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:31:59,015 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:31:59,015 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:31:59,015 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:31:59,015 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:31:59,017 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:31:59,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:59,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:31:59,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:59,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:59,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:31:59,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:31:59,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:31:59,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:59,019 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:31:59,019 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:59,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:31:59,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:59,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:59,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:59,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:59,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:59,022 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:31:59,023 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_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8654406b0017787fa4ace126fd130560d0ff458 [2021-10-11 00:31:59,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:59,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:59,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:59,343 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:59,345 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:59,346 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-10-11 00:31:59,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/data/8c4497b00/98886a0d29de46d080dd1f1f865efa3a/FLAGd9b8ded5d [2021-10-11 00:31:59,861 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:59,861 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/sv-benchmarks/c/termination-crafted-lit/HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-10-11 00:31:59,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/data/8c4497b00/98886a0d29de46d080dd1f1f865efa3a/FLAGd9b8ded5d [2021-10-11 00:32:00,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/data/8c4497b00/98886a0d29de46d080dd1f1f865efa3a [2021-10-11 00:32:00,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:32:00,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:32:00,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:00,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:32:00,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:32:00,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51fb3d6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00, skipping insertion in model container [2021-10-11 00:32:00,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:32:00,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:32:00,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:00,416 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:32:00,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:32:00,448 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:32:00,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00 WrapperNode [2021-10-11 00:32:00,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:32:00,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:00,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:32:00,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:32:00,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:32:00,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:32:00,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:32:00,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:32:00,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... [2021-10-11 00:32:00,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:32:00,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:32:00,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:32:00,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:32:00,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/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 00:32:00,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:32:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:32:00,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:32:00,747 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 00:32:00,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:00 BoogieIcfgContainer [2021-10-11 00:32:00,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:32:00,750 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:32:00,750 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:32:00,753 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:32:00,753 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:32:00,753 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:32:00" (1/3) ... [2021-10-11 00:32:00,754 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19e188f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:32:00, skipping insertion in model container [2021-10-11 00:32:00,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:32:00,755 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:00" (2/3) ... [2021-10-11 00:32:00,755 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19e188f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:32:00, skipping insertion in model container [2021-10-11 00:32:00,755 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:32:00,755 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:00" (3/3) ... [2021-10-11 00:32:00,756 INFO L389 chiAutomizerObserver]: Analyzing ICFG HenzingerJhalaMajumdarSutre-POPL2002-LockingExample.c [2021-10-11 00:32:00,800 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:32:00,800 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:32:00,800 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:32:00,800 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:32:00,801 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:32:00,801 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:32:00,801 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:32:00,801 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:32:00,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2021-10-11 00:32:00,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2021-10-11 00:32:00,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:32:00,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:32:00,838 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:32:00,838 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:32:00,838 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:32:00,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states. [2021-10-11 00:32:00,840 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2021-10-11 00:32:00,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:32:00,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:32:00,841 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:32:00,841 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-11 00:32:00,848 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue ~LOCK~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post3, main_#t~nondet1, main_#t~nondet4, main_#t~post5, main_~got_lock~0, main_~old~0, main_~new~0;havoc main_~got_lock~0;main_~old~0 := 0;main_~new~0 := 0; 17#L34true assume 0 != main_#t~nondet0;havoc main_#t~nondet0; 10#L35-3true [2021-10-11 00:32:00,848 INFO L796 eck$LassoCheckResult]: Loop: 10#L35-3true main_~got_lock~0 := 0; 4#L37true assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 20#L37-2true assume !(0 != main_~got_lock~0); 18#L35-1true assume !!(0 != main_#t~nondet1);havoc main_#t~nondet1; 10#L35-3true [2021-10-11 00:32:00,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:00,854 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-10-11 00:32:00,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:00,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210833687] [2021-10-11 00:32:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:00,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:00,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:00,957 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:32:00,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:00,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1212883, now seen corresponding path program 1 times [2021-10-11 00:32:00,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:00,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424647827] [2021-10-11 00:32:00,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:00,966 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:00,971 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:00,972 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:32:00,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:32:00,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1804975604, now seen corresponding path program 1 times [2021-10-11 00:32:00,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:32:00,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278768110] [2021-10-11 00:32:00,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:32:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:00,984 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:32:00,992 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:32:00,995 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:32:01,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:32:01 BoogieIcfgContainer [2021-10-11 00:32:01,160 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:32:01,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:32:01,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:32:01,161 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:32:01,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:00" (3/4) ... [2021-10-11 00:32:01,164 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-11 00:32:01,197 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5aed4c83-9dd3-4f55-85a8-1e12e76b3eae/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:32:01,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:32:01,199 INFO L168 Benchmark]: Toolchain (without parser) took 956.59 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 58.2 MB in the beginning and 101.3 MB in the end (delta: -43.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:01,200 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 64.4 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:01,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.53 ms. Allocated memory is still 92.3 MB. Free memory was 57.9 MB in the beginning and 69.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:01,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.33 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 68.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:01,202 INFO L168 Benchmark]: Boogie Preprocessor took 18.69 ms. Allocated memory is still 92.3 MB. Free memory was 67.7 MB in the beginning and 66.7 MB in the end (delta: 963.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:01,203 INFO L168 Benchmark]: RCFGBuilder took 246.60 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 55.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:01,203 INFO L168 Benchmark]: BuchiAutomizer took 410.50 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 55.5 MB in the beginning and 102.6 MB in the end (delta: -47.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:32:01,204 INFO L168 Benchmark]: Witness Printer took 36.76 ms. Allocated memory is still 125.8 MB. Free memory was 102.6 MB in the beginning and 101.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:32:01,208 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 64.4 MB in the beginning and 64.4 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 206.53 ms. Allocated memory is still 92.3 MB. Free memory was 57.9 MB in the beginning and 69.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.33 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 68.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.69 ms. Allocated memory is still 92.3 MB. Free memory was 67.7 MB in the beginning and 66.7 MB in the end (delta: 963.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 246.60 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 55.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 410.50 ms. Allocated memory was 92.3 MB in the beginning and 125.8 MB in the end (delta: 33.6 MB). Free memory was 55.5 MB in the beginning and 102.6 MB in the end (delta: -47.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. * Witness Printer took 36.76 ms. Allocated memory is still 125.8 MB. Free memory was 102.6 MB in the beginning and 101.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. 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: No data available 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: 35]: 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 {got_lock=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56dd8f79=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@626e7174=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17fcedc0=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10ec0e4a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@16c26ab1=0, new=0, old=0, LOCK=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@780d404a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 35]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int LOCK; [L32] int got_lock; [L33] int old = 0, new = 0; [L34] COND TRUE __VERIFIER_nondet_int() Loop: [L36] got_lock = 0 [L37] COND FALSE !(__VERIFIER_nondet_int()) [L41] COND FALSE !(\read(got_lock)) [L44] COND TRUE __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...