./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --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 eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:46:23,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:46:23,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 05:46:23,315 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:46:23,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:46:23,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:46:23,336 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:46:23,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:46:23,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:46:23,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:46:23,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:46:23,337 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:46:23,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:46:23,338 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:46:23,338 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:46:23,338 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:46:23,338 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:46:23,338 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:46:23,338 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:46:23,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:46:23,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:46:23,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:46:23,339 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:46:23,339 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:46:23,339 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:46:23,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 [2024-12-06 05:46:23,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:46:23,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:46:23,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:46:23,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:46:23,557 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:46:23,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive/EvenOdd03.c [2024-12-06 05:46:26,196 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/data/229a7436a/d87a8af35cb74209ab2d917738fa2d45/FLAG1e93947a9 [2024-12-06 05:46:26,424 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:46:26,424 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/sv-benchmarks/c/recursive/EvenOdd03.c [2024-12-06 05:46:26,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/data/229a7436a/d87a8af35cb74209ab2d917738fa2d45/FLAG1e93947a9 [2024-12-06 05:46:26,779 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/data/229a7436a/d87a8af35cb74209ab2d917738fa2d45 [2024-12-06 05:46:26,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:46:26,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:46:26,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:46:26,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:46:26,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:46:26,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7860ee65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26, skipping insertion in model container [2024-12-06 05:46:26,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,797 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:46:26,906 WARN L250 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_cb8216b5-c936-414e-91a9-c921a329436b/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2024-12-06 05:46:26,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:46:26,917 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:46:26,930 WARN L250 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_cb8216b5-c936-414e-91a9-c921a329436b/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2024-12-06 05:46:26,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:46:26,943 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:46:26,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26 WrapperNode [2024-12-06 05:46:26,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:46:26,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:46:26,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:46:26,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:46:26,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,965 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-12-06 05:46:26,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:46:26,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:46:26,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:46:26,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:46:26,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,971 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,973 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:46:26,979 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:46:26,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:46:26,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:46:26,980 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:46:26" (1/1) ... [2024-12-06 05:46:26,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:46:26,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:46:27,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:46:27,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:46:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:46:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2024-12-06 05:46:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2024-12-06 05:46:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:46:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2024-12-06 05:46:27,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2024-12-06 05:46:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:46:27,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:46:27,071 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:46:27,072 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:46:27,176 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-12-06 05:46:27,176 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:46:27,194 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:46:27,194 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:46:27,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:46:27 BoogieIcfgContainer [2024-12-06 05:46:27,194 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:46:27,195 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:46:27,195 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:46:27,203 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:46:27,203 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:46:27" (1/1) ... [2024-12-06 05:46:27,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:46:27,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:46:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-12-06 05:46:27,249 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-12-06 05:46:27,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 05:46:27,253 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:46:27,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:46:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:46:27,329 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:46:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:46:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:46:27,383 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:46:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:46:27,400 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:46:27,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:46:27 ImpRootNode [2024-12-06 05:46:27,422 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:46:27,423 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:46:27,423 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:46:27,423 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:46:27,423 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:46:27" (3/4) ... [2024-12-06 05:46:27,424 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 05:46:27,452 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-12-06 05:46:27,486 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 05:46:27,486 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 05:46:27,487 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:46:27,487 INFO L158 Benchmark]: Toolchain (without parser) took 705.31ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 77.6MB in the end (delta: 40.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-06 05:46:27,488 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:46:27,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.77ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 106.7MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:46:27,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.06ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 105.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:46:27,489 INFO L158 Benchmark]: Boogie Preprocessor took 13.05ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 104.7MB in the end (delta: 885.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:46:27,489 INFO L158 Benchmark]: RCFGBuilder took 215.08ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 93.8MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:46:27,489 INFO L158 Benchmark]: CodeCheck took 226.89ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 81.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:46:27,490 INFO L158 Benchmark]: Witness Printer took 64.04ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 77.6MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:46:27,492 INFO L338 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, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 49]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L40] int n = __VERIFIER_nondet_int(); [L41] COND FALSE !(n < 0) VAL [n=0] [L44] CALL, EXPR isEven(n) VAL [\old(n)=0] [L29] COND TRUE n == 0 [L30] return 1; VAL [\old(n)=0, \result=1] [L44] RET, EXPR isEven(n) VAL [n=0] [L44] int result = isEven(n); [L45] int mod = n % 2; VAL [mod=0, result=1] [L46] COND FALSE !(result < 0 || result == mod) [L49] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.77ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 106.7MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.06ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 105.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.05ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 104.7MB in the end (delta: 885.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 215.08ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 93.8MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 226.89ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 81.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 64.04ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 77.6MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 05:46:27,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb8216b5-c936-414e-91a9-c921a329436b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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