./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/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_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5eaae4e0e100231882d4e227389aa6df1e49e6fa56c0a085febf2800aa4ad8fe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:06:33,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:06:33,862 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 03:06:33,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:06:33,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:06:33,917 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:06:33,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:06:33,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:06:33,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:06:33,926 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:06:33,928 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:06:33,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:06:33,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:06:33,931 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:06:33,932 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:06:33,932 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:06:33,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:06:33,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:06:33,934 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:06:33,934 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:06:33,935 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:06:33,935 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:06:33,936 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:06:33,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:06:33,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:06:33,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:06:33,939 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:06:33,939 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:06:33,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:06:33,941 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_c34da249-0deb-4bcb-8fad-a5f036ec7564/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eaae4e0e100231882d4e227389aa6df1e49e6fa56c0a085febf2800aa4ad8fe [2023-11-19 03:06:34,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:06:34,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:06:34,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:06:34,309 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:06:34,310 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:06:34,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c [2023-11-19 03:06:37,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:06:37,665 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:06:37,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/sv-benchmarks/c/array-memsafety/bubblesort_unsafe.c [2023-11-19 03:06:37,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/data/f091e9665/9680cc066e6c4ba5a1019bc1e2bb7507/FLAG3400987a9 [2023-11-19 03:06:37,691 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/data/f091e9665/9680cc066e6c4ba5a1019bc1e2bb7507 [2023-11-19 03:06:37,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:06:37,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:06:37,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:06:37,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:06:37,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:06:37,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:37,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d106eef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37, skipping insertion in model container [2023-11-19 03:06:37,709 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:37,732 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:06:37,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:06:37,927 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:06:37,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:06:37,956 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:06:37,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37 WrapperNode [2023-11-19 03:06:37,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:06:37,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:06:37,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:06:37,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:06:37,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:37,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:37,992 INFO L138 Inliner]: procedures = 8, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2023-11-19 03:06:37,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:06:37,993 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:06:37,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:06:37,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:06:38,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,014 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:06:38,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:06:38,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:06:38,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:06:38,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:06:37" (1/1) ... [2023-11-19 03:06:38,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:06:38,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:06:38,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:06:38,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:06:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:06:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:06:38,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:06:38,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:06:38,193 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:06:38,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:06:38,408 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:06:38,447 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:06:38,452 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:06:38,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:06:38 BoogieIcfgContainer [2023-11-19 03:06:38,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:06:38,459 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:06:38,459 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:06:38,470 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:06:38,471 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:06:38" (1/1) ... [2023-11-19 03:06:38,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:06:38,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:06:38,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 26 states and 28 transitions. [2023-11-19 03:06:38,548 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2023-11-19 03:06:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:06:38,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:06:38,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:06:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:06:38,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:06:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:06:38,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 28 states and 31 transitions. [2023-11-19 03:06:38,843 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2023-11-19 03:06:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:06:38,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:06:38,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:06:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:06:38,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:06:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:06:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:06:38,898 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:06:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:06:38,912 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:06:38,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:06:38 ImpRootNode [2023-11-19 03:06:38,935 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:06:38,936 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:06:38,936 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:06:38,936 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:06:38,937 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:06:38" (3/4) ... [2023-11-19 03:06:38,938 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:06:38,974 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:06:38,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:06:38,975 INFO L158 Benchmark]: Toolchain (without parser) took 1276.74ms. Allocated memory is still 146.8MB. Free memory was 101.8MB in the beginning and 106.7MB in the end (delta: -4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:06:38,976 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:06:38,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.06ms. Allocated memory is still 146.8MB. Free memory was 101.5MB in the beginning and 91.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:06:38,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.00ms. Allocated memory is still 146.8MB. Free memory was 91.4MB in the beginning and 89.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:06:38,978 INFO L158 Benchmark]: Boogie Preprocessor took 22.98ms. Allocated memory is still 146.8MB. Free memory was 89.7MB in the beginning and 88.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:06:38,978 INFO L158 Benchmark]: RCFGBuilder took 440.78ms. Allocated memory is still 146.8MB. Free memory was 88.5MB in the beginning and 75.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:06:38,979 INFO L158 Benchmark]: CodeCheck took 476.74ms. Allocated memory is still 146.8MB. Free memory was 75.1MB in the beginning and 108.2MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:06:38,979 INFO L158 Benchmark]: Witness Printer took 38.55ms. Allocated memory is still 146.8MB. Free memory was 108.2MB in the beginning and 106.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:06:38,983 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 1 procedures, 26 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L19] int* numbers; [L20] int array_size = __VERIFIER_nondet_int(); [L21] CALL bubbleSort(numbers, array_size) [L5] int i, j, temp; [L7] i = (array_size - 1) VAL [\old(array_size)=2, array_size=2, i=1, numbers={3:6}, numbers={3:6}] [L7] COND TRUE i >= 0 [L8] j = 1 VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={3:6}, numbers={3:6}] [L8] COND TRUE j <= i VAL [\old(array_size)=2, array_size=2, i=1, j=1, numbers={3:6}, numbers={3:6}] [L9] numbers[j-1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.06ms. Allocated memory is still 146.8MB. Free memory was 101.5MB in the beginning and 91.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.00ms. Allocated memory is still 146.8MB. Free memory was 91.4MB in the beginning and 89.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.98ms. Allocated memory is still 146.8MB. Free memory was 89.7MB in the beginning and 88.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.78ms. Allocated memory is still 146.8MB. Free memory was 88.5MB in the beginning and 75.1MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 476.74ms. Allocated memory is still 146.8MB. Free memory was 75.1MB in the beginning and 108.2MB in the end (delta: -33.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.55ms. Allocated memory is still 146.8MB. Free memory was 108.2MB in the beginning and 106.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:06:39,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c34da249-0deb-4bcb-8fad-a5f036ec7564/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(valid-deref)