./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/count_down_unsafe.i --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_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/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_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/count_down_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/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_537d5ba4-24dd-4a42-8302-3ee18ec7584d/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 f9f8e12a96bbd82b23d1fc92b67fc377b3c783a366d4cad2924c946b146eff3f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:35:40,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:35:40,797 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-08 19:35:40,804 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:35:40,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:35:40,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:35:40,849 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:35:40,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:35:40,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:35:40,852 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:35:40,853 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:35:40,854 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:35:40,854 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:35:40,855 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-08 19:35:40,855 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-08 19:35:40,859 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-08 19:35:40,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:35:40,859 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:35:40,860 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:35:40,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:35:40,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:35:40,861 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:35:40,861 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:35:40,862 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:35:40,862 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:35:40,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:35:40,863 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:35:40,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:35:40,865 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:35:40,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:35:40,866 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_537d5ba4-24dd-4a42-8302-3ee18ec7584d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9f8e12a96bbd82b23d1fc92b67fc377b3c783a366d4cad2924c946b146eff3f [2024-11-08 19:35:41,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:35:41,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:35:41,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:35:41,189 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:35:41,190 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:35:41,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/array-memsafety/count_down_unsafe.i Unable to find full path for "g++" [2024-11-08 19:35:43,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:35:43,551 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:35:43,556 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/sv-benchmarks/c/array-memsafety/count_down_unsafe.i [2024-11-08 19:35:43,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/data/8816e8e47/c6e5dab924b24bc587db2e6549ba54a6/FLAG0ea4084ac [2024-11-08 19:35:43,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/data/8816e8e47/c6e5dab924b24bc587db2e6549ba54a6 [2024-11-08 19:35:43,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:35:43,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:35:43,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:35:43,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:35:43,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:35:43,632 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:35:43" (1/1) ... [2024-11-08 19:35:43,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa7fda5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:43, skipping insertion in model container [2024-11-08 19:35:43,634 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:35:43" (1/1) ... [2024-11-08 19:35:43,696 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:35:44,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:35:44,074 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:35:44,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:35:44,250 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:35:44,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44 WrapperNode [2024-11-08 19:35:44,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:35:44,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:35:44,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:35:44,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:35:44,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,272 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,294 INFO L138 Inliner]: procedures = 115, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-11-08 19:35:44,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:35:44,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:35:44,296 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:35:44,296 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:35:44,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,321 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:35:44,325 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:35:44,325 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:35:44,325 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:35:44,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:35:44,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:35:44,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:35:44,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:35:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 19:35:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 19:35:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:35:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:35:44,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:35:44,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:35:44,542 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:35:44,549 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:35:44,785 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2024-11-08 19:35:44,785 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:35:44,838 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:35:44,839 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 19:35:44,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:35:44 BoogieIcfgContainer [2024-11-08 19:35:44,840 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:35:44,841 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:35:44,841 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:35:44,853 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:35:44,853 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:35:44" (1/1) ... [2024-11-08 19:35:44,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:35:44,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:35:44,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2024-11-08 19:35:44,918 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2024-11-08 19:35:44,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-08 19:35:44,920 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:35:44,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:35:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:35:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:35:45,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:35:45,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2024-11-08 19:35:45,153 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-08 19:35:45,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-08 19:35:45,154 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:35:45,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:35:45,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:35:45,190 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:35:45,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:35:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:35:45,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:35:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:35:45,290 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 19:35:45,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:35:45 ImpRootNode [2024-11-08 19:35:45,318 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:35:45,318 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:35:45,319 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:35:45,319 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:35:45,321 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:35:44" (3/4) ... [2024-11-08 19:35:45,322 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-08 19:35:45,374 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537d5ba4-24dd-4a42-8302-3ee18ec7584d/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:35:45,374 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:35:45,377 INFO L158 Benchmark]: Toolchain (without parser) took 1754.74ms. Allocated memory is still 163.6MB. Free memory was 104.1MB in the beginning and 87.7MB in the end (delta: 16.4MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2024-11-08 19:35:45,377 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 123.7MB. Free memory is still 94.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:35:45,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.79ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 128.8MB in the end (delta: -24.9MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-11-08 19:35:45,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.59ms. Allocated memory is still 163.6MB. Free memory was 128.2MB in the beginning and 126.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:35:45,379 INFO L158 Benchmark]: Boogie Preprocessor took 28.42ms. Allocated memory is still 163.6MB. Free memory was 126.7MB in the beginning and 125.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:35:45,380 INFO L158 Benchmark]: RCFGBuilder took 515.27ms. Allocated memory is still 163.6MB. Free memory was 125.5MB in the beginning and 109.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:35:45,380 INFO L158 Benchmark]: CodeCheck took 477.07ms. Allocated memory is still 163.6MB. Free memory was 108.7MB in the beginning and 89.7MB in the end (delta: 19.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 19:35:45,381 INFO L158 Benchmark]: Witness Printer took 55.49ms. Allocated memory is still 163.6MB. Free memory was 89.7MB in the beginning and 87.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:35:45,386 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, 25 locations, 9 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, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 2 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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: [L513] int i, j; [L514] int val; [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L516] length = 1 [L517] int *arr = __builtin_alloca (length); VAL [arr={2:0}, length=1] [L518] COND FALSE !(!arr) [L519] i=0 VAL [arr={2:0}, i=0, length=1] [L519] COND FALSE !(i