./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-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_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3 --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 fc03d948b3133d1e09e5b9df570e018433e0831cbe27440ede702c2678003704 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:24:24,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:24:24,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-25 03:24:24,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:24:24,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:24:24,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:24:24,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:24:24,584 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:24:24,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:24:24,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:24:24,584 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:24:24,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:24:24,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:24:24,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:24:24,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:24:24,586 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-25 03:24:24,587 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-25 03:24:24,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:24:24,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:24:24,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:24:24,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:24:24,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:24:24,588 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:24:24,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:24:24,588 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:24:24,588 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:24:24,588 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:24:24,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:24:24,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:24:24,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:24:24,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:24:24,589 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:24:24,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:24:24,589 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_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3 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 -> fc03d948b3133d1e09e5b9df570e018433e0831cbe27440ede702c2678003704 [2024-11-25 03:24:24,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:24:24,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:24:24,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:24:24,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:24:24,916 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:24:24,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2024-11-25 03:24:28,357 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/data/69f3b5c0d/a14bec1d2e5a4a219d117bc1fd9e1c51/FLAG1bd8beb44 [2024-11-25 03:24:28,775 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:24:28,775 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2024-11-25 03:24:28,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/data/69f3b5c0d/a14bec1d2e5a4a219d117bc1fd9e1c51/FLAG1bd8beb44 [2024-11-25 03:24:28,824 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/data/69f3b5c0d/a14bec1d2e5a4a219d117bc1fd9e1c51 [2024-11-25 03:24:28,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:24:28,830 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:24:28,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:24:28,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:24:28,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:24:28,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:24:28" (1/1) ... [2024-11-25 03:24:28,848 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e32ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:28, skipping insertion in model container [2024-11-25 03:24:28,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:24:28" (1/1) ... [2024-11-25 03:24:28,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:24:29,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:24:29,317 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:24:29,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:24:29,437 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:24:29,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29 WrapperNode [2024-11-25 03:24:29,438 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:24:29,439 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:24:29,439 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:24:29,439 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:24:29,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,490 INFO L138 Inliner]: procedures = 119, calls = 34, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2024-11-25 03:24:29,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:24:29,491 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:24:29,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:24:29,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:24:29,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,516 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,524 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:24:29,533 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:24:29,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:24:29,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:24:29,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:24:29" (1/1) ... [2024-11-25 03:24:29,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:24:29,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:24:29,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:24:29,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:24:29,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 03:24:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 03:24:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-25 03:24:29,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:24:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-25 03:24:29,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-25 03:24:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 03:24:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:24:29,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:24:29,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:24:29,824 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:24:29,826 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:24:30,083 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-25 03:24:30,083 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:24:30,140 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:24:30,140 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-25 03:24:30,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:24:30 BoogieIcfgContainer [2024-11-25 03:24:30,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:24:30,142 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:24:30,142 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:24:30,156 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:24:30,157 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:24:30" (1/1) ... [2024-11-25 03:24:30,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:24:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:24:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2024-11-25 03:24:30,232 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2024-11-25 03:24:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 03:24:30,236 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:24:30,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:24:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:24:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:24:30,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:24:30,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 26 states and 38 transitions. [2024-11-25 03:24:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2024-11-25 03:24:30,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 03:24:30,544 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:24:30,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:24:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:24:30,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:24:31,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:24:31,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 50 transitions. [2024-11-25 03:24:31,038 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2024-11-25 03:24:31,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:24:31,039 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:24:31,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:24:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:24:31,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-25 03:24:32,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:24:32,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 37 states and 60 transitions. [2024-11-25 03:24:32,098 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 60 transitions. [2024-11-25 03:24:32,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 03:24:32,098 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:24:32,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:24:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:24:32,144 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:24:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:24:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:24:32,316 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:24:32,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:24:32,376 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-25 03:24:32,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:24:32 ImpRootNode [2024-11-25 03:24:32,424 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:24:32,426 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:24:32,426 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:24:32,427 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:24:32,428 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:24:30" (3/4) ... [2024-11-25 03:24:32,429 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 03:24:32,494 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 8. [2024-11-25 03:24:32,561 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 03:24:32,564 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 03:24:32,564 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:24:32,565 INFO L158 Benchmark]: Toolchain (without parser) took 3735.14ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 91.5MB in the beginning and 143.0MB in the end (delta: -51.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-11-25 03:24:32,566 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:24:32,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.14ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 73.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:24:32,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.33ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:24:32,568 INFO L158 Benchmark]: Boogie Preprocessor took 41.22ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 71.0MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:24:32,569 INFO L158 Benchmark]: RCFGBuilder took 608.41ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 54.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:24:32,570 INFO L158 Benchmark]: CodeCheck took 2281.63ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 54.0MB in the beginning and 147.7MB in the end (delta: -93.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:24:32,571 INFO L158 Benchmark]: Witness Printer took 138.16ms. Allocated memory is still 184.5MB. Free memory was 147.7MB in the beginning and 143.0MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:24:32,573 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: 2.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 54 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 289 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L999] SLL* head = malloc(sizeof(SLL)); [L1000] head->next = ((void*)0) [L1001] head->data = 0 [L1003] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1016] COND TRUE __VERIFIER_nondet_int() [L1017] x = malloc(sizeof(SLL)) [L1018] x->data = 1 [L1019] x->next = head [L1020] head = x VAL [head={-2:0}, x={-1:0}] [L1040] x = head VAL [head={-2:0}, x={-2:0}] [L1043] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1043] COND FALSE !(x->data != 1) [L1049] EXPR x->next [L1049] x = x->next [L1050] COND TRUE \read(*x) [L1052] EXPR x->data VAL [head={-2:0}, x={-1:0}] [L1052] COND TRUE x->data != 1 [L1053] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-simple-white-blue-2.c", 16, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.14ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 73.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.33ms. Allocated memory is still 117.4MB. Free memory was 73.9MB in the beginning and 72.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.22ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 71.0MB in the end (delta: 1.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 608.41ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 54.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2281.63ms. Allocated memory was 117.4MB in the beginning and 184.5MB in the end (delta: 67.1MB). Free memory was 54.0MB in the beginning and 147.7MB in the end (delta: -93.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 138.16ms. Allocated memory is still 184.5MB. Free memory was 147.7MB in the beginning and 143.0MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-25 03:24:32,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c5cf16-f7fe-4e77-8df3-a7549bf0edf2/bin/ukojak-verify-ENZ3QT5qd3/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)