./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/count_down_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm --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 0.3.0-dev-826ab2b [2024-11-13 23:13:53,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:13:53,596 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2024-11-13 23:13:53,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:13:53,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:13:53,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:13:53,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:13:53,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:13:53,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:13:53,660 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:13:53,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:13:53,661 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:13:53,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:13:53,662 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 23:13:53,662 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 23:13:53,662 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-13 23:13:53,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:13:53,662 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:13:53,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:13:53,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:13:53,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:13:53,664 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:13:53,664 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:13:53,664 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:13:53,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:13:53,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:13:53,665 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:13:53,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:13:53,666 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:13:53,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:13:53,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm 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 [2024-11-13 23:13:54,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:13:54,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:13:54,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:13:54,110 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:13:54,113 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:13:54,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/array-memsafety/count_down_unsafe.i Unable to find full path for "g++" [2024-11-13 23:13:56,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:13:56,945 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:13:56,946 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/sv-benchmarks/c/array-memsafety/count_down_unsafe.i [2024-11-13 23:13:56,968 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/data/f8f92cc25/f93e6f0c875842668a2ca43c30333f97/FLAG31a9549db [2024-11-13 23:13:56,996 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/data/f8f92cc25/f93e6f0c875842668a2ca43c30333f97 [2024-11-13 23:13:56,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:13:57,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:13:57,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:13:57,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:13:57,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:13:57,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:13:56" (1/1) ... [2024-11-13 23:13:57,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c7869f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57, skipping insertion in model container [2024-11-13 23:13:57,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:13:56" (1/1) ... [2024-11-13 23:13:57,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:13:57,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:13:57,541 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:13:57,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:13:57,662 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:13:57,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57 WrapperNode [2024-11-13 23:13:57,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:13:57,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:13:57,666 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:13:57,666 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:13:57,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,720 INFO L138 Inliner]: procedures = 115, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2024-11-13 23:13:57,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:13:57,722 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:13:57,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:13:57,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:13:57,728 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:13:57,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:13:57,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:13:57,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:13:57,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:57" (1/1) ... [2024-11-13 23:13:57,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:13:57,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:13:57,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:13:57,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:13:57,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:13:57,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:13:57,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:13:57,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:13:57,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:13:57,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:13:57,992 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:13:57,995 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:13:58,297 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-13 23:13:58,302 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:13:58,391 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:13:58,391 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 23:13:58,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:58 BoogieIcfgContainer [2024-11-13 23:13:58,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:13:58,393 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:13:58,393 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:13:58,408 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:13:58,408 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:58" (1/1) ... [2024-11-13 23:13:58,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:13:58,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:13:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2024-11-13 23:13:58,498 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-13 23:13:58,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 23:13:58,500 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:13:58,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:13:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:13:58,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:13:58,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:13:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2024-11-13 23:13:58,920 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-13 23:13:58,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 23:13:58,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:13:58,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:13:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:13:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:13:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:13:59,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-11-13 23:13:59,254 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-13 23:13:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 23:13:59,254 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:13:59,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:13:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:59,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:13:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:59,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:13:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:59,412 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-13 23:13:59,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:13:59 ImpRootNode [2024-11-13 23:13:59,449 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:13:59,450 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:13:59,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:13:59,450 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:13:59,451 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:58" (3/4) ... [2024-11-13 23:13:59,452 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 23:13:59,502 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321b8ba3-3657-4356-befa-80f1cd25cfc1/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 23:13:59,506 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:13:59,507 INFO L158 Benchmark]: Toolchain (without parser) took 2502.74ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 81.3MB in the end (delta: 10.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-11-13 23:13:59,508 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:59,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 657.87ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 75.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:13:59,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.68ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 73.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:59,509 INFO L158 Benchmark]: Boogie Preprocessor took 23.67ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 72.7MB in the end (delta: 835.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:59,509 INFO L158 Benchmark]: RCFGBuilder took 645.72ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 57.6MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:13:59,510 INFO L158 Benchmark]: CodeCheck took 1055.84ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 83.3MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:59,510 INFO L158 Benchmark]: Witness Printer took 56.42ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 81.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:13:59,518 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, 21 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 2 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 FALSE !(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 TRUE i