./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b --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-d790fec [2024-12-06 01:06:01,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:06:01,452 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-12-06 01:06:01,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:06:01,457 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:06:01,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:06:01,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:06:01,477 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:06:01,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:06:01,478 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:06:01,479 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:06:01,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:06:01,479 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:06:01,479 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:06:01,479 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:06:01,479 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:06:01,479 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:06:01,479 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:06:01,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:06:01,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:06:01,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:06:01,480 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:06:01,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:06:01,480 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_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b 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 [2024-12-06 01:06:01,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:06:01,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:06:01,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:06:01,716 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:06:01,716 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:06:01,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/list-properties/list_flag-1.i [2024-12-06 01:06:04,407 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/data/bf0d50bd4/6d9d6d557b1c4f4992531e7a9fe5820d/FLAG8ce6293a8 [2024-12-06 01:06:04,630 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:06:04,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/sv-benchmarks/c/list-properties/list_flag-1.i [2024-12-06 01:06:04,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/data/bf0d50bd4/6d9d6d557b1c4f4992531e7a9fe5820d/FLAG8ce6293a8 [2024-12-06 01:06:04,995 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/data/bf0d50bd4/6d9d6d557b1c4f4992531e7a9fe5820d [2024-12-06 01:06:04,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:06:04,998 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:06:04,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:06:04,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:06:05,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:06:05,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:06:04" (1/1) ... [2024-12-06 01:06:05,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304d73ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05, skipping insertion in model container [2024-12-06 01:06:05,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:06:04" (1/1) ... [2024-12-06 01:06:05,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:06:05,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:06:05,230 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:06:05,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:06:05,284 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:06:05,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05 WrapperNode [2024-12-06 01:06:05,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:06:05,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:06:05,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:06:05,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:06:05,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,313 INFO L138 Inliner]: procedures = 124, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-12-06 01:06:05,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:06:05,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:06:05,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:06:05,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:06:05,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,327 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:06:05,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:06:05,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:06:05,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:06:05,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:06:05,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:06:05,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:06:05,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:06:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 01:06:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 01:06:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 01:06:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:06:05,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 01:06:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 01:06:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:06:05,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:06:05,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:06:05,457 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:06:05,458 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:06:05,573 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 01:06:05,573 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:06:05,606 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:06:05,606 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-06 01:06:05,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:06:05 BoogieIcfgContainer [2024-12-06 01:06:05,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:06:05,608 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:06:05,608 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:06:05,615 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:06:05,615 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:06:05" (1/1) ... [2024-12-06 01:06:05,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:06:05,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:06:05,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2024-12-06 01:06:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2024-12-06 01:06:05,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:06:05,668 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:06:05,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:06:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:06:05,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:06:05,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:06:05,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2024-12-06 01:06:05,811 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-12-06 01:06:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 01:06:05,812 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:06:05,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:06:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:06:05,835 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:06:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:06:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:06:05,892 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:06:05,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:06:05,916 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 01:06:05,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:06:05 ImpRootNode [2024-12-06 01:06:05,938 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:06:05,939 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:06:05,939 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:06:05,939 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:06:05,940 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:06:05" (3/4) ... [2024-12-06 01:06:05,940 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 01:06:05,980 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-12-06 01:06:06,015 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:06:06,015 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:06:06,015 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:06:06,016 INFO L158 Benchmark]: Toolchain (without parser) took 1017.88ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 88.8MB in the end (delta: 3.3MB). Peak memory consumption was 64.0MB. Max. memory is 16.1GB. [2024-12-06 01:06:06,016 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:06:06,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.28ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 75.2MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:06:06,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.41ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:06:06,017 INFO L158 Benchmark]: Boogie Preprocessor took 21.53ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 72.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:06:06,017 INFO L158 Benchmark]: RCFGBuilder took 271.32ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 58.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:06:06,018 INFO L158 Benchmark]: CodeCheck took 330.85ms. Allocated memory is still 117.4MB. Free memory was 58.0MB in the beginning and 39.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:06:06,018 INFO L158 Benchmark]: Witness Printer took 76.02ms. Allocated memory is still 117.4MB. Free memory was 39.8MB in the beginning and 88.8MB in the end (delta: -48.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-12-06 01:06:06,020 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: 0.3s, 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, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 6 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, ConComCheckerStatistics: 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 0.31ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.28ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 75.2MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.41ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 73.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.53ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 72.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 271.32ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 58.0MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 330.85ms. Allocated memory is still 117.4MB. Free memory was 58.0MB in the beginning and 39.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 76.02ms. Allocated memory is still 117.4MB. Free memory was 39.8MB in the beginning and 88.8MB in the end (delta: -48.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 01:06:06,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda8ab82-a764-42eb-b9c3-db65c5534e98/bin/ukojak-verify-CZk0znPC7b/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)