./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-circular-2.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_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/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_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-circular-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/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_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/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 f91abcd8d9f4c4a9bb166bca3090e9f421fd2afed3c0226bce3d2e7c0b6ce95e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:18:16,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:18:16,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-12-06 04:18:16,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:18:16,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:18:16,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:18:16,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:18:16,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:18:16,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:18:16,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:18:16,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:18:16,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:18:16,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:18:16,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:18:16,314 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:18:16,314 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:18:16,314 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:18:16,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:18:16,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:18:16,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:18:16,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:18:16,314 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:18:16,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:18:16,314 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_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/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 -> f91abcd8d9f4c4a9bb166bca3090e9f421fd2afed3c0226bce3d2e7c0b6ce95e [2024-12-06 04:18:16,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:18:16,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:18:16,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:18:16,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:18:16,546 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:18:16,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/forester-heap/sll-circular-2.i [2024-12-06 04:18:19,163 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/data/b7a7c3e76/e40402e3b5c5462a826aac74af24bf75/FLAG435a79dbb [2024-12-06 04:18:19,400 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:18:19,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/sv-benchmarks/c/forester-heap/sll-circular-2.i [2024-12-06 04:18:19,412 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/data/b7a7c3e76/e40402e3b5c5462a826aac74af24bf75/FLAG435a79dbb [2024-12-06 04:18:19,426 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/data/b7a7c3e76/e40402e3b5c5462a826aac74af24bf75 [2024-12-06 04:18:19,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:18:19,430 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:18:19,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:18:19,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:18:19,435 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:18:19,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cd9001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19, skipping insertion in model container [2024-12-06 04:18:19,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:18:19,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:18:19,722 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:18:19,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:18:19,781 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:18:19,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19 WrapperNode [2024-12-06 04:18:19,782 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:18:19,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:18:19,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:18:19,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:18:19,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,814 INFO L138 Inliner]: procedures = 119, calls = 31, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 114 [2024-12-06 04:18:19,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:18:19,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:18:19,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:18:19,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:18:19,822 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,824 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,824 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,830 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:18:19,839 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:18:19,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:18:19,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:18:19,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:18:19" (1/1) ... [2024-12-06 04:18:19,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:18:19,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:18:19,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:18:19,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:18:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 04:18:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 04:18:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 04:18:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:18:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 04:18:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 04:18:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 04:18:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:18:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:18:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:18:19,971 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:18:19,973 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:18:20,119 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-12-06 04:18:20,119 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:18:20,154 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:18:20,154 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-12-06 04:18:20,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:18:20 BoogieIcfgContainer [2024-12-06 04:18:20,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:18:20,155 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:18:20,155 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:18:20,165 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:18:20,165 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:18:20" (1/1) ... [2024-12-06 04:18:20,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:18:20,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:18:20,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 37 states and 57 transitions. [2024-12-06 04:18:20,216 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2024-12-06 04:18:20,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:18:20,218 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:18:20,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:18:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:18:20,339 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 04:18:20,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:18:20,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 36 states and 50 transitions. [2024-12-06 04:18:20,355 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2024-12-06 04:18:20,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:18:20,355 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:18:20,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:18:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:18:20,614 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 04:18:20,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:18:20,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2024-12-06 04:18:20,675 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2024-12-06 04:18:20,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:18:20,676 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:18:20,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:18:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:18:20,722 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 04:18:20,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:18:20,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 41 states and 58 transitions. [2024-12-06 04:18:20,755 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2024-12-06 04:18:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:18:20,757 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:18:20,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:18:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:18:20,805 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 04:18:20,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:18:20,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 41 states and 57 transitions. [2024-12-06 04:18:20,813 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-12-06 04:18:20,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 04:18:20,814 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:18:20,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:18:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:18:20,863 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 04:18:21,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:18:21,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 45 states and 64 transitions. [2024-12-06 04:18:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2024-12-06 04:18:21,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 04:18:21,033 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:18:21,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:18:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:18:21,053 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 04:18:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:18:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 45 states and 62 transitions. [2024-12-06 04:18:21,062 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2024-12-06 04:18:21,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 04:18:21,062 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:18:21,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:18:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:18:21,085 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:18:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:18:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:18:21,149 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:18:21,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:18:21,187 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-12-06 04:18:21,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:18:21 ImpRootNode [2024-12-06 04:18:21,211 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:18:21,212 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:18:21,212 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:18:21,212 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:18:21,212 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:18:20" (3/4) ... [2024-12-06 04:18:21,213 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 04:18:21,240 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 8. [2024-12-06 04:18:21,272 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 04:18:21,272 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 04:18:21,272 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:18:21,273 INFO L158 Benchmark]: Toolchain (without parser) took 1843.23ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 107.4MB in the end (delta: 10.0MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-12-06 04:18:21,273 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:18:21,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.93ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 100.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:18:21,274 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.65ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:18:21,274 INFO L158 Benchmark]: Boogie Preprocessor took 23.59ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:18:21,274 INFO L158 Benchmark]: RCFGBuilder took 315.95ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 80.5MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:18:21,274 INFO L158 Benchmark]: CodeCheck took 1055.88ms. Allocated memory is still 142.6MB. Free memory was 80.3MB in the beginning and 112.5MB in the end (delta: -32.2MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2024-12-06 04:18:21,275 INFO L158 Benchmark]: Witness Printer took 60.66ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 107.4MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:18:21,276 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, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 279 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 217 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 117 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 113 mSDtfsCounter, 117 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 381 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); [L997] head->next = head [L998] head->data = 0 [L1000] SLL* x = head; [L1001] int state = 1; VAL [head={-1:0}, state=1, x={-1:0}] [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1025] x->data = state [L1027] EXPR head->next [L1027] x = head->next [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, x={-1:0}] [L1028] COND FALSE !(0) VAL [head={-1:0}, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, x={-1:0}] [L1030] COND TRUE x->data != 0 [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data [L1032] EXPR x->data [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={-1:0}, x={-1:0}] [L1032] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1032] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-circular-2.c", 14, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.93ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 100.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.65ms. Allocated memory is still 142.6MB. Free memory was 100.2MB in the beginning and 98.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.59ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 315.95ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 80.5MB in the end (delta: 16.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1055.88ms. Allocated memory is still 142.6MB. Free memory was 80.3MB in the beginning and 112.5MB in the end (delta: -32.2MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Witness Printer took 60.66ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 107.4MB in the end (delta: 5.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 04:18:21,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_071c2a5d-93a6-4f1c-a774-6a4cf2f60b82/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)