./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list-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_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/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_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/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_082940d0-c9a2-436a-9701-3752b066930c/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 a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:38:36,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:38:36,791 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-12-05 23:38:36,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:38:36,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:38:36,816 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:38:36,817 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:38:36,817 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:38:36,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:38:36,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:38:36,817 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:38:36,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:38:36,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:38:36,818 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:38:36,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:38:36,819 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:38:36,819 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:38:36,819 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:38:36,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:38:36,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:38:36,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:38:36,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:38:36,819 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:38:36,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:38:36,820 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_082940d0-c9a2-436a-9701-3752b066930c/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 -> a135e953d64ed0fec81eb2a1e42f4031e3e387fc71d5a5cd2177772a202dc706 [2024-12-05 23:38:37,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:38:37,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:38:37,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:38:37,060 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:38:37,061 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:38:37,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/list-properties/list-2.i [2024-12-05 23:38:39,681 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/data/ff6cfd55f/9208e9393d2f44a391d3c3fe16c7cecf/FLAG2572f5547 [2024-12-05 23:38:39,915 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:38:39,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/sv-benchmarks/c/list-properties/list-2.i [2024-12-05 23:38:39,926 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/data/ff6cfd55f/9208e9393d2f44a391d3c3fe16c7cecf/FLAG2572f5547 [2024-12-05 23:38:40,249 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/data/ff6cfd55f/9208e9393d2f44a391d3c3fe16c7cecf [2024-12-05 23:38:40,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:38:40,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:38:40,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:38:40,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:38:40,255 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:38:40,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,257 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a53bbcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40, skipping insertion in model container [2024-12-05 23:38:40,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:38:40,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:38:40,511 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:38:40,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:38:40,570 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:38:40,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40 WrapperNode [2024-12-05 23:38:40,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:38:40,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:38:40,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:38:40,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:38:40,578 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,587 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,603 INFO L138 Inliner]: procedures = 124, calls = 25, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 87 [2024-12-05 23:38:40,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:38:40,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:38:40,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:38:40,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:38:40,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,614 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,614 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,620 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,624 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,626 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:38:40,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:38:40,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:38:40,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:38:40,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:38:40,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:38:40,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:38:40,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:38:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 23:38:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 23:38:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 23:38:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:38:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-05 23:38:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-05 23:38:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:38:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:38:40,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:38:40,765 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:38:40,766 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:38:40,898 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-05 23:38:40,898 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:38:40,927 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:38:40,927 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-05 23:38:40,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:38:40 BoogieIcfgContainer [2024-12-05 23:38:40,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:38:40,928 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:38:40,928 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:38:40,935 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:38:40,935 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:38:40" (1/1) ... [2024-12-05 23:38:40,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:38:40,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:38:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 38 transitions. [2024-12-05 23:38:40,977 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2024-12-05 23:38:40,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:38:40,979 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:38:40,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:38:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:38:41,079 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 23:38:41,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:38:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-12-05 23:38:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-12-05 23:38:41,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 23:38:41,110 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:38:41,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:38:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:38:41,345 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 23:38:41,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:38:41,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 36 states and 52 transitions. [2024-12-05 23:38:41,456 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 52 transitions. [2024-12-05 23:38:41,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 23:38:41,456 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:38:41,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:38:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:38:41,469 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:38:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:38:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:38:41,521 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:38:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:38:41,544 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-12-05 23:38:41,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:38:41 ImpRootNode [2024-12-05 23:38:41,567 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:38:41,568 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:38:41,568 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:38:41,568 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:38:41,568 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:38:40" (3/4) ... [2024-12-05 23:38:41,569 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 23:38:41,597 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-12-05 23:38:41,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 23:38:41,638 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 23:38:41,638 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:38:41,639 INFO L158 Benchmark]: Toolchain (without parser) took 1387.30ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 96.9MB in the end (delta: 19.2MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-12-05 23:38:41,639 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:38:41,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.71ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:38:41,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.94ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:38:41,640 INFO L158 Benchmark]: Boogie Preprocessor took 24.80ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:38:41,641 INFO L158 Benchmark]: RCFGBuilder took 298.02ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 80.4MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:38:41,641 INFO L158 Benchmark]: CodeCheck took 638.86ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 100.8MB in the end (delta: -20.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:38:41,641 INFO L158 Benchmark]: Witness Printer took 70.72ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 96.9MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:38:41,643 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, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 42 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; VAL [a={30808:0}, p={30808:0}] [L536] COND FALSE !(__VERIFIER_nondet_int()) [L543] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a VAL [p={30808:0}] [L552] EXPR p->h VAL [p={30808:0}] [L552] COND FALSE !(p->h == 2) [L554] EXPR p->h VAL [p={30808:0}] [L554] COND FALSE !(p->h == 1) [L556] EXPR p->h [L556] COND FALSE !(p->h != 3) [L558] return 0; VAL [\result=0] * 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 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.71ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.8MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.94ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.80ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.02ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 80.4MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 638.86ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 100.8MB in the end (delta: -20.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.72ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 96.9MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 23:38:41,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_082940d0-c9a2-436a-9701-3752b066930c/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)