./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-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_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/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_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/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_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/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 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:41:31,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:41:31,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-12-05 21:41:31,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:41:31,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:41:31,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:41:31,541 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:41:31,542 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:41:31,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:41:31,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:41:31,542 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:41:31,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:41:31,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:41:31,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:41:31,543 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:41:31,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:41:31,544 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:41:31,544 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:41:31,544 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:41:31,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:41:31,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:41:31,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:41:31,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:41:31,545 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:41:31,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:41:31,545 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_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/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 -> 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 [2024-12-05 21:41:31,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:41:31,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:41:31,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:41:31,763 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:41:31,763 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:41:31,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/forester-heap/dll-token-2.i [2024-12-05 21:41:34,379 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/data/33c0d69aa/de82862ac4a349c89788b77198cf0cf9/FLAGedc5be617 [2024-12-05 21:41:34,643 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:41:34,644 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/sv-benchmarks/c/forester-heap/dll-token-2.i [2024-12-05 21:41:34,656 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/data/33c0d69aa/de82862ac4a349c89788b77198cf0cf9/FLAGedc5be617 [2024-12-05 21:41:34,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/data/33c0d69aa/de82862ac4a349c89788b77198cf0cf9 [2024-12-05 21:41:34,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:41:34,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:41:34,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:41:34,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:41:34,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:41:34,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:41:34" (1/1) ... [2024-12-05 21:41:34,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607a2281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:34, skipping insertion in model container [2024-12-05 21:41:34,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:41:34" (1/1) ... [2024-12-05 21:41:34,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:41:35,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:41:35,238 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:41:35,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:41:35,288 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:41:35,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35 WrapperNode [2024-12-05 21:41:35,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:41:35,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:41:35,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:41:35,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:41:35,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,316 INFO L138 Inliner]: procedures = 119, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2024-12-05 21:41:35,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:41:35,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:41:35,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:41:35,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:41:35,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,334 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,344 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:41:35,345 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:41:35,345 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:41:35,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:41:35,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:41:35,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:41:35,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:41:35,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:41:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:41:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:41:35,476 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:41:35,477 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:41:35,649 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-05 21:41:35,649 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:41:35,674 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:41:35,675 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-12-05 21:41:35,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:41:35 BoogieIcfgContainer [2024-12-05 21:41:35,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:41:35,676 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:41:35,676 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:41:35,683 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:41:35,683 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:41:35" (1/1) ... [2024-12-05 21:41:35,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:41:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:35,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 84 transitions. [2024-12-05 21:41:35,724 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2024-12-05 21:41:35,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-05 21:41:35,726 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:35,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:41:36,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:41:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:36,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 53 states and 79 transitions. [2024-12-05 21:41:36,180 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 79 transitions. [2024-12-05 21:41:36,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 21:41:36,181 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:36,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:41:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:41:36,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:36,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 81 transitions. [2024-12-05 21:41:36,378 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 81 transitions. [2024-12-05 21:41:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 21:41:36,379 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:36,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:41:36,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 21:41:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 49 states and 71 transitions. [2024-12-05 21:41:36,595 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2024-12-05 21:41:36,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 21:41:36,596 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:41:36,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:41:36,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:36,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 48 states and 65 transitions. [2024-12-05 21:41:36,642 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2024-12-05 21:41:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:41:36,642 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:36,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:41:37,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:41:37,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:37,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 56 states and 72 transitions. [2024-12-05 21:41:37,710 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 72 transitions. [2024-12-05 21:41:37,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:41:37,710 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:37,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:41:37,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:41:38,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:38,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 53 states and 69 transitions. [2024-12-05 21:41:38,120 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2024-12-05 21:41:38,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-05 21:41:38,121 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:38,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:41:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:41:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:39,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 58 states and 79 transitions. [2024-12-05 21:41:39,656 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2024-12-05 21:41:39,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-05 21:41:39,658 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:39,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:41:40,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:41:41,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:41:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 62 states and 87 transitions. [2024-12-05 21:41:41,045 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 87 transitions. [2024-12-05 21:41:41,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-05 21:41:41,045 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:41:41,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:41:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:41:41,069 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:41:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:41:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:41:41,225 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:41:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:41:41,313 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2024-12-05 21:41:41,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:41:41 ImpRootNode [2024-12-05 21:41:41,337 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:41:41,338 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:41:41,338 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:41:41,338 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:41:41,339 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:41:35" (3/4) ... [2024-12-05 21:41:41,339 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 21:41:41,375 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 10. [2024-12-05 21:41:41,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 21:41:41,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 21:41:41,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:41:41,422 INFO L158 Benchmark]: Toolchain (without parser) took 6458.61ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 116.0MB in the beginning and 173.6MB in the end (delta: -57.6MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2024-12-05 21:41:41,422 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:41:41,423 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.50ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:41:41,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.46ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 96.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:41:41,423 INFO L158 Benchmark]: Boogie Preprocessor took 26.88ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:41:41,423 INFO L158 Benchmark]: RCFGBuilder took 330.42ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 77.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:41:41,424 INFO L158 Benchmark]: CodeCheck took 5661.58ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 77.8MB in the beginning and 176.8MB in the end (delta: -99.0MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2024-12-05 21:41:41,424 INFO L158 Benchmark]: Witness Printer took 83.23ms. Allocated memory is still 293.6MB. Free memory was 176.8MB in the beginning and 173.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:41:41,426 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, 55 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 570 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 407 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 137 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 728 GetRequests, 634 SyntacticMatches, 14 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2194 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 761 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 2/6 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: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); [L1005] head->next = ((void*)0) [L1006] head->prev = ((void*)0) [L1007] head->data = 0 [L1009] SLL* x = head; VAL [head={4832:0}, x={4832:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 [L1022] x->next = malloc(sizeof(SLL)) [L1023] EXPR x->next [L1023] x->next->prev = x [L1024] EXPR x->next [L1024] x->next->data = 2 [L1026] x = head VAL [head={4832:0}, x={4832:0}] [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={4832:0}, x={4832:0}] [L1028] COND FALSE !(0) VAL [head={4832:0}, x={4832:0}] [L1030] EXPR x->data VAL [head={4832:0}, x={4832:0}] [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data VAL [head={4832:0}, x={4832:0}] [L1035] COND FALSE !(!(1 == x->data)) [L1035] COND FALSE !(0) VAL [head={4832:0}, x={4832:0}] [L1036] EXPR x->next [L1036] x = x->next [L1037] EXPR x->data VAL [head={4832:0}, x={4831:0}] [L1037] COND TRUE !(2 != x->data) [L1037] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-token-2.c", 12, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.50ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.46ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 96.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.88ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.3MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 330.42ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 77.8MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5661.58ms. Allocated memory was 142.6MB in the beginning and 293.6MB in the end (delta: 151.0MB). Free memory was 77.8MB in the beginning and 176.8MB in the end (delta: -99.0MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Witness Printer took 83.23ms. Allocated memory is still 293.6MB. Free memory was 176.8MB in the beginning and 173.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 21:41:41,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ad42a4-c759-49a6-b4c2-3d26b0bf8a0c/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)