./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrncpy_unsafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a0165632 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_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrncpy_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk --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 6d9d4ccd50762f6f94227af6be901e1499ea77136c5cda899a027f7324024a3f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:54:44,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:54:44,814 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-09 00:54:44,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:54:44,824 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:54:44,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:54:44,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:54:44,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:54:44,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:54:44,862 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:54:44,864 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:54:44,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:54:44,865 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:54:44,865 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 00:54:44,865 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 00:54:44,866 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 00:54:44,866 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:54:44,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:54:44,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:54:44,871 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:54:44,872 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:54:44,872 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:54:44,873 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:54:44,873 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:54:44,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:54:44,874 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:54:44,874 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:54:44,874 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:54:44,875 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:54:44,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:54:44,875 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_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d9d4ccd50762f6f94227af6be901e1499ea77136c5cda899a027f7324024a3f [2024-11-09 00:54:45,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:54:45,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:54:45,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:54:45,210 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:54:45,210 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:54:45,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/array-memsafety/cstrncpy_unsafe.c Unable to find full path for "g++" [2024-11-09 00:54:47,259 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:54:47,455 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:54:47,456 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/sv-benchmarks/c/array-memsafety/cstrncpy_unsafe.c [2024-11-09 00:54:47,467 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/data/375de9acd/257787930f87480d89a15e04dc829d9b/FLAGa36f83238 [2024-11-09 00:54:47,490 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/data/375de9acd/257787930f87480d89a15e04dc829d9b [2024-11-09 00:54:47,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:54:47,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:54:47,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:54:47,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:54:47,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:54:47,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718f88ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47, skipping insertion in model container [2024-11-09 00:54:47,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:54:47,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:54:47,806 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:54:47,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:54:47,844 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:54:47,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47 WrapperNode [2024-11-09 00:54:47,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:54:47,846 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:54:47,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:54:47,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:54:47,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,884 INFO L138 Inliner]: procedures = 8, calls = 6, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2024-11-09 00:54:47,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:54:47,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:54:47,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:54:47,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:54:47,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,911 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:54:47,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:54:47,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:54:47,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:54:47,922 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:54:47" (1/1) ... [2024-11-09 00:54:47,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:54:47,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:54:47,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:54:47,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:54:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:54:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:54:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:54:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:54:48,102 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:54:48,105 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:54:48,343 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-11-09 00:54:48,344 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:54:48,388 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:54:48,389 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:54:48,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:48 BoogieIcfgContainer [2024-11-09 00:54:48,390 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:54:48,391 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:54:48,391 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:54:48,403 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:54:48,404 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:48" (1/1) ... [2024-11-09 00:54:48,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:54:48,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:54:48,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-09 00:54:48,487 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-09 00:54:48,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 00:54:48,490 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:54:48,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:54:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:54:48,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:54:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:54:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:54:48,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:54:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:54:48,756 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:54:48,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:54:48 ImpRootNode [2024-11-09 00:54:48,790 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:54:48,793 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:54:48,793 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:54:48,794 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:54:48,794 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:54:48" (3/4) ... [2024-11-09 00:54:48,796 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:54:48,848 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:54:48,849 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:54:48,852 INFO L158 Benchmark]: Toolchain (without parser) took 1353.55ms. Allocated memory is still 163.6MB. Free memory was 125.8MB in the beginning and 126.1MB in the end (delta: -300.9kB). Peak memory consumption was 803.2kB. Max. memory is 16.1GB. [2024-11-09 00:54:48,852 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:54:48,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.66ms. Allocated memory is still 163.6MB. Free memory was 125.8MB in the beginning and 113.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:54:48,854 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.69ms. Allocated memory is still 163.6MB. Free memory was 113.6MB in the beginning and 112.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:54:48,855 INFO L158 Benchmark]: Boogie Preprocessor took 33.88ms. Allocated memory is still 163.6MB. Free memory was 112.2MB in the beginning and 111.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:54:48,856 INFO L158 Benchmark]: RCFGBuilder took 469.09ms. Allocated memory is still 163.6MB. Free memory was 111.1MB in the beginning and 98.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 00:54:48,856 INFO L158 Benchmark]: CodeCheck took 399.32ms. Allocated memory is still 163.6MB. Free memory was 98.0MB in the beginning and 128.0MB in the end (delta: -30.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:54:48,859 INFO L158 Benchmark]: Witness Printer took 55.54ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 126.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:54:48,867 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, 19 locations, 7 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, 4 NumberOfCodeBlocks, 4 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L27] char *s1; [L28] char *s2; [L29] int n = __VERIFIER_nondet_int(); [L30] CALL cstrncpy(s1, s2, n) [L5] char *dst = s1; [L6] const char *src = s2; [L7] char *us; [L8] int n2; VAL [dst={2:-1}, n=1, s1={2:-1}] [L10] COND FALSE !(n > 0) VAL [dst={2:-1}, n=1, s1={2:-1}] [L10] COND TRUE n > 0 [L11] n-- [L12] dst++ [L12] src++ * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 127.9MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.66ms. Allocated memory is still 163.6MB. Free memory was 125.8MB in the beginning and 113.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.69ms. Allocated memory is still 163.6MB. Free memory was 113.6MB in the beginning and 112.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.88ms. Allocated memory is still 163.6MB. Free memory was 112.2MB in the beginning and 111.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.09ms. Allocated memory is still 163.6MB. Free memory was 111.1MB in the beginning and 98.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 399.32ms. Allocated memory is still 163.6MB. Free memory was 98.0MB in the beginning and 128.0MB in the end (delta: -30.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 55.54ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 126.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:54:48,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ffcbd8cb-94bf-4044-968a-598bd36f1b5d/bin/ukojak-verify-ImItNfHLgk/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)