./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list_flag-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/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_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 643182475b6f3736876ef9d58257e821498e53d566e4d81dd06a8f042f299e0b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:26:48,475 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:26:48,562 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-13 21:26:48,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:26:48,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:26:48,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:26:48,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:26:48,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:26:48,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:26:48,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:26:48,613 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:26:48,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:26:48,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:26:48,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:26:48,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:26:48,614 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 21:26:48,615 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 21:26:48,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:26:48,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:26:48,615 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:26:48,615 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:26:48,616 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:26:48,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:26:48,616 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:26:48,616 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:26:48,616 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:26:48,616 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:26:48,616 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:26:48,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:26:48,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:26:48,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:26:48,617 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:26:48,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:26:48,617 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_6d420119-cee0-4666-80bf-66659fefe9e4/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-memcleanup) ) 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 -> 643182475b6f3736876ef9d58257e821498e53d566e4d81dd06a8f042f299e0b [2024-11-13 21:26:48,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:26:48,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:26:48,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:26:48,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:26:48,961 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:26:48,962 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/list-properties/list_flag-1.i Unable to find full path for "g++" [2024-11-13 21:26:50,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:26:51,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:26:51,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/sv-benchmarks/c/list-properties/list_flag-1.i [2024-11-13 21:26:51,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/data/fa360002b/1653f3c856284f75a1969b81a8ffaa64/FLAG5fc437df1 [2024-11-13 21:26:51,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/data/fa360002b/1653f3c856284f75a1969b81a8ffaa64 [2024-11-13 21:26:51,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:26:51,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:26:51,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:26:51,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:26:51,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:26:51,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ee636f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51, skipping insertion in model container [2024-11-13 21:26:51,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,328 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:26:51,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:26:51,631 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:26:51,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:26:51,702 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:26:51,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51 WrapperNode [2024-11-13 21:26:51,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:26:51,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:26:51,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:26:51,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:26:51,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,755 INFO L138 Inliner]: procedures = 124, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-11-13 21:26:51,755 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:26:51,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:26:51,756 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:26:51,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:26:51,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,765 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:26:51,785 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:26:51,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:26:51,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:26:51,787 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:26:51" (1/1) ... [2024-11-13 21:26:51,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:26:51,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:26:51,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:26:51,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:26:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:26:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:26:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 21:26:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:26:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 21:26:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 21:26:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:26:51,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:26:51,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:26:51,985 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:26:51,987 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:26:52,139 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 21:26:52,140 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:26:52,178 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:26:52,178 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-13 21:26:52,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:26:52 BoogieIcfgContainer [2024-11-13 21:26:52,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:26:52,180 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:26:52,180 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:26:52,190 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:26:52,190 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:26:52" (1/1) ... [2024-11-13 21:26:52,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:26:52,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:26:52,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2024-11-13 21:26:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2024-11-13 21:26:52,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 21:26:52,249 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:26:52,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:26:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:26:52,378 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 21:26:52,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:26:52,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2024-11-13 21:26:52,417 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-11-13 21:26:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 21:26:52,417 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:26:52,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:26:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:26:52,449 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:26:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:26:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:26:52,533 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:26:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:26:52,573 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 21:26:52,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:26:52 ImpRootNode [2024-11-13 21:26:52,601 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:26:52,602 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:26:52,602 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:26:52,602 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:26:52,603 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:26:52" (3/4) ... [2024-11-13 21:26:52,604 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:26:52,643 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:26:52,643 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:26:52,644 INFO L158 Benchmark]: Toolchain (without parser) took 1353.53ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 38.7MB in the end (delta: 54.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 21:26:52,645 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:26:52,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.96ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 75.6MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:26:52,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.52ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 73.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:26:52,646 INFO L158 Benchmark]: Boogie Preprocessor took 28.94ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:26:52,646 INFO L158 Benchmark]: RCFGBuilder took 393.42ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 58.5MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:26:52,647 INFO L158 Benchmark]: CodeCheck took 421.69ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 40.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:26:52,647 INFO L158 Benchmark]: Witness Printer took 41.50ms. Allocated memory is still 117.4MB. Free memory was 40.4MB in the beginning and 38.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:26:52,649 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, 22 locations, 2 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, 30 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 64 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = __VERIFIER_nondet_int(); [L533] List p, a, t; [L534] a = (List) malloc(sizeof(struct node)) [L535] COND FALSE !(a == 0) [L536] p = a VAL [a={-1:0}, flag=0, p={-1:0}] [L537] COND FALSE !(__VERIFIER_nondet_int()) [L548] p->h = 3 [L549] p = a VAL [flag=0, p={-1:0}] [L550] COND FALSE !(\read(flag)) VAL [p={-1:0}] [L554] EXPR p->h VAL [p={-1:0}] [L554] COND FALSE !(p->h == 1) [L556] EXPR p->h [L556] COND FALSE !(p->h != 3) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 167.8MB. Free memory is still 104.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.96ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 75.6MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.52ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 73.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.94ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 393.42ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 58.5MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 421.69ms. Allocated memory is still 117.4MB. Free memory was 58.5MB in the beginning and 40.4MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 41.50ms. Allocated memory is still 117.4MB. Free memory was 40.4MB in the beginning and 38.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:26:52,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d420119-cee0-4666-80bf-66659fefe9e4/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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-memcleanup)