./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL --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 0.2.3-dev-9bd2c7f [2023-11-19 03:27:58,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:27:58,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:27:58,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:27:58,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:27:59,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:27:59,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:27:59,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:27:59,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:27:59,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:27:59,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:27:59,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:27:59,040 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:27:59,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:27:59,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:27:59,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:27:59,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:27:59,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:27:59,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:27:59,044 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:27:59,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:27:59,045 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:27:59,046 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:27:59,046 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:27:59,046 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:27:59,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:27:59,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:27:59,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:27:59,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:27:59,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:27:59,050 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:27:59,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:27:59,051 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:27:59,057 INFO L153 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_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 [2023-11-19 03:27:59,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:27:59,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:27:59,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:27:59,402 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:27:59,403 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:27:59,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/recursive/EvenOdd03.c [2023-11-19 03:28:02,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:28:02,695 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:28:02,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/sv-benchmarks/c/recursive/EvenOdd03.c [2023-11-19 03:28:02,703 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/data/338e8c844/3a50dec072774a17b27790513ac0cc11/FLAG25fd333e8 [2023-11-19 03:28:02,720 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/data/338e8c844/3a50dec072774a17b27790513ac0cc11 [2023-11-19 03:28:02,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:28:02,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:28:02,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:28:02,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:28:02,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:28:02,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:28:02" (1/1) ... [2023-11-19 03:28:02,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9f12a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:02, skipping insertion in model container [2023-11-19 03:28:02,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:28:02" (1/1) ... [2023-11-19 03:28:02,765 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:28:02,959 WARN L240 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_06e45b54-1bb4-4697-94e7-7791d3c3ba09/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2023-11-19 03:28:02,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:28:02,974 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:28:02,991 WARN L240 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_06e45b54-1bb4-4697-94e7-7791d3c3ba09/sv-benchmarks/c/recursive/EvenOdd03.c[974,987] [2023-11-19 03:28:02,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:28:03,007 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:28:03,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03 WrapperNode [2023-11-19 03:28:03,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:28:03,009 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:28:03,009 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:28:03,009 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:28:03,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,041 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-11-19 03:28:03,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:28:03,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:28:03,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:28:03,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:28:03,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,053 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,056 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,059 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:28:03,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:28:03,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:28:03,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:28:03,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:28:03,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:28:03,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:28:03,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:28:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:28:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2023-11-19 03:28:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2023-11-19 03:28:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:28:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2023-11-19 03:28:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2023-11-19 03:28:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:28:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:28:03,234 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:28:03,237 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:28:03,363 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:28:03,382 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:28:03,382 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:28:03,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:28:03 BoogieIcfgContainer [2023-11-19 03:28:03,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:28:03,388 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:28:03,388 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:28:03,398 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:28:03,398 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:28:03" (1/1) ... [2023-11-19 03:28:03,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:28:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:28:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-11-19 03:28:03,466 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-19 03:28:03,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:28:03,471 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:28:03,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:28:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:28:03,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:28:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:28:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:28:03,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:28:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:28:03,736 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:28:03,758 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated [2023-11-19 03:28:03,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:28:03 ImpRootNode [2023-11-19 03:28:03,763 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:28:03,764 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:28:03,764 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:28:03,764 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:28:03,765 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:28:03" (3/4) ... [2023-11-19 03:28:03,766 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:28:03,768 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated [2023-11-19 03:28:03,821 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:28:03,821 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:28:03,822 INFO L158 Benchmark]: Toolchain (without parser) took 1094.32ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 99.6MB in the end (delta: 21.4MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-19 03:28:03,823 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:28:03,823 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.12ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 110.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:28:03,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.92ms. Allocated memory is still 151.0MB. Free memory was 110.6MB in the beginning and 109.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:28:03,825 INFO L158 Benchmark]: Boogie Preprocessor took 19.75ms. Allocated memory is still 151.0MB. Free memory was 109.0MB in the beginning and 108.0MB in the end (delta: 987.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:28:03,825 INFO L158 Benchmark]: RCFGBuilder took 323.90ms. Allocated memory is still 151.0MB. Free memory was 108.0MB in the beginning and 114.6MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:28:03,826 INFO L158 Benchmark]: CodeCheck took 375.62ms. Allocated memory is still 151.0MB. Free memory was 114.3MB in the beginning and 101.2MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 03:28:03,826 INFO L158 Benchmark]: Witness Printer took 57.59ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 99.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:28:03,829 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: 0.3s, 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 - 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, n=0] [L44] RET, EXPR isEven(n) VAL [n=0] [L44] int result = isEven(n); [L45] int mod = n % 2; VAL [mod=0, n=0, result=1] [L46] COND FALSE !(result < 0 || result == mod) VAL [mod=0, n=0, result=1] [L49] reach_error() VAL [mod=0, n=0, result=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.12ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 110.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.92ms. Allocated memory is still 151.0MB. Free memory was 110.6MB in the beginning and 109.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.75ms. Allocated memory is still 151.0MB. Free memory was 109.0MB in the beginning and 108.0MB in the end (delta: 987.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.90ms. Allocated memory is still 151.0MB. Free memory was 108.0MB in the beginning and 114.6MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 375.62ms. Allocated memory is still 151.0MB. Free memory was 114.3MB in the beginning and 101.2MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 57.59ms. Allocated memory is still 151.0MB. Free memory was 101.2MB in the beginning and 99.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:28:03,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06e45b54-1bb4-4697-94e7-7791d3c3ba09/bin/ukojak-verify-G8NBE6pJGL/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE