./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/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_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/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_a34cfff5-5222-430a-8ea8-f2d9734e28aa/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 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:04:20,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:04:20,450 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-12-06 01:04:20,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:04:20,455 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:04:20,474 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:04:20,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:04:20,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:04:20,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:04:20,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:04:20,476 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:04:20,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:04:20,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:04:20,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:04:20,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:04:20,476 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 01:04:20,477 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 01:04:20,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:04:20,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:04:20,477 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:04:20,477 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:04:20,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:04:20,477 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:04:20,478 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:04:20,478 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:04:20,478 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:04:20,478 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:04:20,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:04:20,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:04:20,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:04:20,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:04:20,479 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:04:20,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:04:20,479 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_a34cfff5-5222-430a-8ea8-f2d9734e28aa/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 -> 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 [2024-12-06 01:04:20,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:04:20,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:04:20,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:04:20,735 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:04:20,735 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:04:20,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/forester-heap/sll-token-1.i [2024-12-06 01:04:23,402 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/data/2b3ec15d3/4865efef00c44a78aa67604236e82b98/FLAG9e1a37cd4 [2024-12-06 01:04:23,654 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:04:23,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/sv-benchmarks/c/forester-heap/sll-token-1.i [2024-12-06 01:04:23,667 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/data/2b3ec15d3/4865efef00c44a78aa67604236e82b98/FLAG9e1a37cd4 [2024-12-06 01:04:23,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/data/2b3ec15d3/4865efef00c44a78aa67604236e82b98 [2024-12-06 01:04:23,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:04:23,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:04:23,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:04:23,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:04:23,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:04:23,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:04:23" (1/1) ... [2024-12-06 01:04:23,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2520f96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:23, skipping insertion in model container [2024-12-06 01:04:23,696 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:04:23" (1/1) ... [2024-12-06 01:04:23,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:04:23,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:04:23,997 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:04:24,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:04:24,073 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:04:24,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24 WrapperNode [2024-12-06 01:04:24,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:04:24,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:04:24,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:04:24,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:04:24,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,115 INFO L138 Inliner]: procedures = 119, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-12-06 01:04:24,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:04:24,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:04:24,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:04:24,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:04:24,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,136 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,137 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:04:24,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:04:24,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:04:24,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:04:24,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:04:24,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:04:24,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:04:24,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:04:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 01:04:24,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 01:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 01:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 01:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 01:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 01:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:04:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:04:24,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:04:24,308 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:04:24,309 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:04:24,483 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-06 01:04:24,483 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:04:24,505 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:04:24,506 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-12-06 01:04:24,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:04:24 BoogieIcfgContainer [2024-12-06 01:04:24,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:04:24,507 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:04:24,507 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:04:24,516 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:04:24,516 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:04:24" (1/1) ... [2024-12-06 01:04:24,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:04:24,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:04:24,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 55 states and 84 transitions. [2024-12-06 01:04:24,574 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 84 transitions. [2024-12-06 01:04:24,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 01:04:24,577 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:04:24,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:04:24,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:04:24,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:04:24,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:04:24,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 51 states and 75 transitions. [2024-12-06 01:04:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 75 transitions. [2024-12-06 01:04:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 01:04:24,818 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:04:24,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:04:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:04:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:04:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:04:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 54 states and 76 transitions. [2024-12-06 01:04:25,012 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 76 transitions. [2024-12-06 01:04:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 01:04:25,013 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:04:25,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:04:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:04:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 01:04:25,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:04:25,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 47 states and 67 transitions. [2024-12-06 01:04:25,195 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2024-12-06 01:04:25,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 01:04:25,195 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:04:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:04:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:04:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:04:25,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:04:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2024-12-06 01:04:25,236 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2024-12-06 01:04:25,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:04:25,236 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:04:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:04:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:04:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:04:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:04:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 52 states and 66 transitions. [2024-12-06 01:04:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 66 transitions. [2024-12-06 01:04:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 01:04:25,798 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:04:25,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:04:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:04:25,819 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:04:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:04:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:04:25,903 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:04:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:04:25,941 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-12-06 01:04:25,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:04:25 ImpRootNode [2024-12-06 01:04:25,964 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:04:25,964 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:04:25,964 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:04:25,965 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:04:25,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:04:24" (3/4) ... [2024-12-06 01:04:25,966 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 01:04:26,000 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 8. [2024-12-06 01:04:26,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:04:26,044 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:04:26,044 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:04:26,045 INFO L158 Benchmark]: Toolchain (without parser) took 2356.92ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 40.6MB in the end (delta: 51.9MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2024-12-06 01:04:26,045 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.2MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:04:26,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.95ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 75.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:04:26,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.76ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 73.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:04:26,046 INFO L158 Benchmark]: Boogie Preprocessor took 31.02ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 72.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:04:26,047 INFO L158 Benchmark]: RCFGBuilder took 358.42ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 56.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:04:26,047 INFO L158 Benchmark]: CodeCheck took 1457.35ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 45.2MB in the end (delta: 11.1MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-12-06 01:04:26,047 INFO L158 Benchmark]: Witness Printer took 79.25ms. Allocated memory is still 117.4MB. Free memory was 44.4MB in the beginning and 40.6MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:04:26,050 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: 1.4s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 256 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 116 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 74 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 349 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 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, ConComCheckerStatistics: 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={15783:0}, x={15783:0}] [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={15783:0}, x={15783:0}] [L1024] COND FALSE !(!(((void*)0) != x)) VAL [head={15783:0}, x={15783:0}] [L1024] COND FALSE !(0) VAL [head={15783:0}, x={15783:0}] [L1026] EXPR x->data VAL [head={15783:0}, x={15783:0}] [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data VAL [head={15783:0}, x={15783:0}] [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 0.31ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.2MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.95ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 75.1MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.76ms. Allocated memory is still 117.4MB. Free memory was 75.1MB in the beginning and 73.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.02ms. Allocated memory is still 117.4MB. Free memory was 73.5MB in the beginning and 72.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 358.42ms. Allocated memory is still 117.4MB. Free memory was 72.0MB in the beginning and 56.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1457.35ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 45.2MB in the end (delta: 11.1MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 79.25ms. Allocated memory is still 117.4MB. Free memory was 44.4MB in the beginning and 40.6MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 01:04:26,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34cfff5-5222-430a-8ea8-f2d9734e28aa/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)