./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:40:52,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:40:52,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-13 16:40:52,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:40:52,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:40:52,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:40:52,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:40:52,630 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:40:52,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:40:52,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:40:52,631 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:40:52,631 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:40:52,631 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:40:52,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:40:52,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:40:52,631 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 16:40:52,631 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 16:40:52,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:40:52,632 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:40:52,632 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:40:52,632 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:40:52,632 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:40:52,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:40:52,632 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:40:52,632 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:40:52,633 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:40:52,633 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:40:52,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:40:52,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:40:52,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:40:52,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:40:52,634 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:40:52,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:40:52,634 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_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 [2024-11-13 16:40:52,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:40:52,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:40:52,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:40:52,989 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:40:52,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:40:52,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/forester-heap/sll-token-1.i Unable to find full path for "g++" [2024-11-13 16:40:55,529 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:40:55,942 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:40:55,943 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/sv-benchmarks/c/forester-heap/sll-token-1.i [2024-11-13 16:40:55,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/data/5920534e1/9bcc6e4f1810488a8183040ada273948/FLAG850cff71c [2024-11-13 16:40:55,996 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/data/5920534e1/9bcc6e4f1810488a8183040ada273948 [2024-11-13 16:40:55,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:40:56,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:40:56,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:40:56,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:40:56,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:40:56,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:40:55" (1/1) ... [2024-11-13 16:40:56,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6acd5026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56, skipping insertion in model container [2024-11-13 16:40:56,013 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:40:55" (1/1) ... [2024-11-13 16:40:56,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:40:56,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:40:56,597 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:40:56,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:40:56,685 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:40:56,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56 WrapperNode [2024-11-13 16:40:56,686 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:40:56,687 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:40:56,687 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:40:56,687 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:40:56,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,737 INFO L138 Inliner]: procedures = 119, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-11-13 16:40:56,737 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:40:56,738 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:40:56,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:40:56,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:40:56,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:40:56,776 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:40:56,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:40:56,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:40:56,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:40:56" (1/1) ... [2024-11-13 16:40:56,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:40:56,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:40:56,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:40:56,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:40:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:40:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:40:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 16:40:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:40:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 16:40:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 16:40:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:40:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:40:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:40:56,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:40:57,060 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:40:57,063 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:40:57,416 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-13 16:40:57,416 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:40:57,445 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:40:57,445 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-13 16:40:57,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:40:57 BoogieIcfgContainer [2024-11-13 16:40:57,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:40:57,447 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:40:57,447 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:40:57,461 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:40:57,461 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:40:57" (1/1) ... [2024-11-13 16:40:57,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:40:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:40:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 84 transitions. [2024-11-13 16:40:57,542 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2024-11-13 16:40:57,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:40:57,545 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:40:57,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:40:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:40:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:40:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:40:57,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 54 states and 77 transitions. [2024-11-13 16:40:57,863 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2024-11-13 16:40:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:40:57,863 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:40:57,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:40:57,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:40:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:40:58,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:40:58,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 50 states and 70 transitions. [2024-11-13 16:40:58,086 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2024-11-13 16:40:58,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 16:40:58,086 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:40:58,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:40:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:40:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:40:58,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:40:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 54 states and 76 transitions. [2024-11-13 16:40:58,385 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 76 transitions. [2024-11-13 16:40:58,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 16:40:58,386 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:40:58,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:40:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:40:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:40:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:40:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 53 states and 70 transitions. [2024-11-13 16:40:58,455 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2024-11-13 16:40:58,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 16:40:58,456 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:40:58,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:40:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:40:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:40:58,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:40:58,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2024-11-13 16:40:58,714 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2024-11-13 16:40:58,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 16:40:58,715 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:40:58,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:40:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:40:58,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:40:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:40:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:40:58,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:40:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:40:59,033 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-13 16:40:59,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:40:59 ImpRootNode [2024-11-13 16:40:59,082 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:40:59,083 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:40:59,083 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:40:59,083 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:40:59,084 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:40:57" (3/4) ... [2024-11-13 16:40:59,085 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 16:40:59,149 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 16:40:59,149 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:40:59,151 INFO L158 Benchmark]: Toolchain (without parser) took 3149.40ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 36.4MB in the end (delta: 54.4MB). Peak memory consumption was 56.4MB. Max. memory is 16.1GB. [2024-11-13 16:40:59,151 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:40:59,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.59ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 73.4MB in the end (delta: 17.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:40:59,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.49ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:40:59,156 INFO L158 Benchmark]: Boogie Preprocessor took 36.97ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 70.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:40:59,156 INFO L158 Benchmark]: RCFGBuilder took 669.99ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 55.1MB in the end (delta: 14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:40:59,157 INFO L158 Benchmark]: CodeCheck took 1635.12ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 38.6MB in the end (delta: 16.6MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2024-11-13 16:40:59,157 INFO L158 Benchmark]: Witness Printer took 66.74ms. Allocated memory is still 117.4MB. Free memory was 38.6MB in the beginning and 36.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:40:59,160 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: 1.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 232 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 82 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 281 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) [L1005] head->data = 0 [L1007] SLL* x = head; VAL [head={-2:0}, x={-2:0}] [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 [L1019] x->next = malloc(sizeof(SLL)) [L1020] EXPR x->next [L1020] x->next->data = 2 [L1022] x = head VAL [head={-2:0}, x={-2:0}] [L1024] COND FALSE !(!(((void*)0) != x)) VAL [head={-2:0}, x={-2:0}] [L1026] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1031] COND TRUE !(2 == x->data) [L1031] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "sll-token-1.c", 12, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.59ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 73.4MB in the end (delta: 17.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.49ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 71.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.97ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 70.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 669.99ms. Allocated memory is still 117.4MB. Free memory was 70.1MB in the beginning and 55.1MB in the end (delta: 14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1635.12ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 38.6MB in the end (delta: 16.6MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Witness Printer took 66.74ms. Allocated memory is still 117.4MB. Free memory was 38.6MB in the beginning and 36.4MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 16:40:59,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7b033a6-4846-4e81-bc17-fcd35873d244/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)