./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 --- 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-e04fb08 [2022-11-16 08:04:51,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 08:04:51,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 08:04:51,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 08:04:51,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 08:04:51,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 08:04:51,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 08:04:51,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 08:04:51,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 08:04:51,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 08:04:51,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 08:04:51,826 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 08:04:51,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 08:04:51,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 08:04:51,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 08:04:51,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 08:04:51,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 08:04:51,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 08:04:51,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 08:04:51,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 08:04:51,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 08:04:51,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 08:04:51,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 08:04:51,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 08:04:51,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 08:04:51,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 08:04:51,844 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 08:04:51,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 08:04:51,846 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 08:04:51,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 08:04:51,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 08:04:51,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 08:04:51,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 08:04:51,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 08:04:51,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 08:04:51,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 08:04:51,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 08:04:51,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 08:04:51,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 08:04:51,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 08:04:51,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 08:04:51,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-11-16 08:04:51,893 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 08:04:51,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 08:04:51,898 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 08:04:51,898 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-16 08:04:51,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 08:04:51,899 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 08:04:51,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 08:04:51,900 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 08:04:51,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 08:04:51,900 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 08:04:51,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 08:04:51,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 08:04:51,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 08:04:51,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 08:04:51,902 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 08:04:51,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 08:04:51,903 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 08:04:51,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 08:04:51,903 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-16 08:04:51,903 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-16 08:04:51,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 08:04:51,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-16 08:04:51,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 08:04:51,904 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 08:04:51,904 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 08:04:51,905 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-16 08:04:51,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 08:04:51,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 08:04:51,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 [2022-11-16 08:04:52,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 08:04:52,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 08:04:52,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 08:04:52,243 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 08:04:52,245 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 08:04:52,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2022-11-16 08:04:52,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/data/cadf8a415/8fdde310151b42a3862a2ee88a74149b/FLAG240773f52 [2022-11-16 08:04:52,721 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.parser.UltimateCdtExternalSettingsProvider.getSettings(UltimateCdtExternalSettingsProvider.java:67) at org.eclipse.cdt.core.settings.model.extension.CExternalSettingProvider.getSettings(CExternalSettingProvider.java:48) at org.eclipse.cdt.internal.core.settings.model.ExtensionContainerFactory$CExtensionSettingProviderDescriptor.getContainer(ExtensionContainerFactory.java:110) at org.eclipse.cdt.internal.core.settings.model.ExtensionContainerFactory.createContainer(ExtensionContainerFactory.java:186) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$ContainerDescriptor.(CExternalSettingsManager.java:147) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.checkExternalSettingsChange(CExternalSettingsManager.java:683) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager.processContainerChange(CExternalSettingsManager.java:501) at org.eclipse.cdt.internal.core.settings.model.CExternalSettingsManager$2.run(CExternalSettingsManager.java:615) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager$5.run(CProjectDescriptionManager.java:508) at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2292) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager.runAtomic(CProjectDescriptionManager.java:504) at org.eclipse.cdt.internal.core.settings.model.CProjectDescriptionManager$4.run(CProjectDescriptionManager.java:484) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-16 08:04:52,892 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 08:04:52,892 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2022-11-16 08:04:52,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/data/cadf8a415/8fdde310151b42a3862a2ee88a74149b/FLAG240773f52 [2022-11-16 08:04:53,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/data/cadf8a415/8fdde310151b42a3862a2ee88a74149b [2022-11-16 08:04:53,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 08:04:53,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 08:04:53,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 08:04:53,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 08:04:53,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 08:04:53,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e57f557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53, skipping insertion in model container [2022-11-16 08:04:53,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 08:04:53,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 08:04:53,483 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2022-11-16 08:04:53,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 08:04:53,495 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 08:04:53,509 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2022-11-16 08:04:53,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 08:04:53,520 INFO L208 MainTranslator]: Completed translation [2022-11-16 08:04:53,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53 WrapperNode [2022-11-16 08:04:53,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 08:04:53,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 08:04:53,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 08:04:53,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 08:04:53,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,549 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-16 08:04:53,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 08:04:53,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 08:04:53,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 08:04:53,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 08:04:53,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 08:04:53,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 08:04:53,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 08:04:53,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 08:04:53,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-16 08:04:53,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/z3 [2022-11-16 08:04:53,598 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-16 08:04:53,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-16 08:04:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 08:04:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 08:04:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2022-11-16 08:04:53,643 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2022-11-16 08:04:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 08:04:53,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 08:04:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-16 08:04:53,644 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-16 08:04:53,705 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 08:04:53,708 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 08:04:53,900 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 08:04:53,930 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 08:04:53,930 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 08:04:53,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:04:53 BoogieIcfgContainer [2022-11-16 08:04:53,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 08:04:53,934 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-16 08:04:53,934 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-16 08:04:53,943 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-16 08:04:53,943 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:04:53" (1/1) ... [2022-11-16 08:04:53,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 08:04:53,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:04:54,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2022-11-16 08:04:54,007 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-16 08:04:54,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 08:04:54,012 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-16 08:04:54,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 08:04:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 08:04:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 08:04:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:04:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2022-11-16 08:04:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-11-16 08:04:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 08:04:54,345 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-16 08:04:54,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 08:04:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 08:04:54,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 08:04:55,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:04:55,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2022-11-16 08:04:55,080 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-11-16 08:04:55,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-16 08:04:55,082 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-16 08:04:55,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 08:04:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 08:04:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 08:04:56,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:04:56,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 39 states and 46 transitions. [2022-11-16 08:04:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2022-11-16 08:04:56,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-16 08:04:56,329 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-16 08:04:56,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 08:04:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 08:04:56,968 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 08:04:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:04:57,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 47 states and 56 transitions. [2022-11-16 08:04:57,976 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2022-11-16 08:04:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-16 08:04:57,977 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-16 08:04:57,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 08:04:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 08:04:58,731 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-16 08:05:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:05:00,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 51 states and 61 transitions. [2022-11-16 08:05:00,296 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2022-11-16 08:05:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 08:05:00,297 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-16 08:05:00,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 08:05:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 08:05:00,713 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-16 08:05:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-16 08:05:02,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 49 states and 59 transitions. [2022-11-16 08:05:02,166 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2022-11-16 08:05:02,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 08:05:02,167 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2022-11-16 08:05:02,176 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-11-16 08:05:02,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 16.11 08:05:02 ImpRootNode [2022-11-16 08:05:02,353 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-16 08:05:02,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 08:05:02,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 08:05:02,354 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 08:05:02,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:04:53" (3/4) ... [2022-11-16 08:05:02,358 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 08:05:02,363 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2022-11-16 08:05:02,363 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-16 08:05:02,366 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-16 08:05:02,367 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 08:05:02,367 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 08:05:02,367 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 08:05:02,402 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/witness.graphml [2022-11-16 08:05:02,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 08:05:02,403 INFO L158 Benchmark]: Toolchain (without parser) took 9128.94ms. Allocated memory was 123.7MB in the beginning and 207.6MB in the end (delta: 83.9MB). Free memory was 84.4MB in the beginning and 73.2MB in the end (delta: 11.2MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2022-11-16 08:05:02,404 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 08:05:02,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.23ms. Allocated memory is still 123.7MB. Free memory was 84.2MB in the beginning and 98.1MB in the end (delta: -13.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 08:05:02,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.78ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 97.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 08:05:02,405 INFO L158 Benchmark]: Boogie Preprocessor took 18.80ms. Allocated memory is still 123.7MB. Free memory was 97.0MB in the beginning and 96.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 08:05:02,406 INFO L158 Benchmark]: RCFGBuilder took 363.54ms. Allocated memory is still 123.7MB. Free memory was 96.0MB in the beginning and 85.0MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 08:05:02,406 INFO L158 Benchmark]: CodeCheck took 8419.92ms. Allocated memory was 123.7MB in the beginning and 207.6MB in the end (delta: 83.9MB). Free memory was 85.0MB in the beginning and 76.3MB in the end (delta: 8.7MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. [2022-11-16 08:05:02,407 INFO L158 Benchmark]: Witness Printer took 48.55ms. Allocated memory is still 207.6MB. Free memory was 76.3MB in the beginning and 73.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 08:05:02,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 212 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 251 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 236 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 472 IncrementalHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 236 mSolverCounterUnsat, 133 mSDtfsCounter, 472 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 989 GetRequests, 868 SyntacticMatches, 7 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4241 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 449 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 49/66 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 27]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory is still 100.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.23ms. Allocated memory is still 123.7MB. Free memory was 84.2MB in the beginning and 98.1MB in the end (delta: -13.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.78ms. Allocated memory is still 123.7MB. Free memory was 98.1MB in the beginning and 97.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.80ms. Allocated memory is still 123.7MB. Free memory was 97.0MB in the beginning and 96.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.54ms. Allocated memory is still 123.7MB. Free memory was 96.0MB in the beginning and 85.0MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 8419.92ms. Allocated memory was 123.7MB in the beginning and 207.6MB in the end (delta: 83.9MB). Free memory was 85.0MB in the beginning and 76.3MB in the end (delta: 8.7MB). Peak memory consumption was 94.1MB. Max. memory is 16.1GB. * Witness Printer took 48.55ms. Allocated memory is still 207.6MB. Free memory was 76.3MB in the beginning and 73.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-16 08:05:02,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be516138-042e-4673-9218-071dae3e9a2a/bin/ukojak-CydTVMUXoH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE