./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/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_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --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 [2024-12-06 05:16:54,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:16:54,491 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 05:16:54,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:16:54,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:16:54,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:16:54,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:16:54,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:16:54,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:16:54,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:16:54,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:16:54,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:16:54,517 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:16:54,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:16:54,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:16:54,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:16:54,518 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_69bb783d-443b-4a23-ab0c-c9a1df38426f/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 ! call(reach_error())) ) 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 [2024-12-06 05:16:54,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:16:54,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:16:54,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:16:54,753 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:16:54,753 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:16:54,754 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2024-12-06 05:16:57,481 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/data/14b2b99e4/71f47a0af4644570b7fe9c3e600eb61e/FLAGfb1529e0b [2024-12-06 05:16:57,710 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:16:57,710 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2024-12-06 05:16:57,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/data/14b2b99e4/71f47a0af4644570b7fe9c3e600eb61e/FLAGfb1529e0b [2024-12-06 05:16:58,046 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/data/14b2b99e4/71f47a0af4644570b7fe9c3e600eb61e [2024-12-06 05:16:58,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:16:58,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:16:58,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:16:58,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:16:58,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:16:58,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2593ffb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58, skipping insertion in model container [2024-12-06 05:16:58,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,083 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:16:58,316 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2024-12-06 05:16:58,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:16:58,330 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:16:58,365 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2024-12-06 05:16:58,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:16:58,390 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:16:58,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58 WrapperNode [2024-12-06 05:16:58,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:16:58,392 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:16:58,392 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:16:58,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:16:58,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,423 INFO L138 Inliner]: procedures = 119, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 109 [2024-12-06 05:16:58,423 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:16:58,424 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:16:58,424 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:16:58,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:16:58,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,440 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:16:58,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:16:58,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:16:58,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:16:58,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:16:58,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:16:58,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:16:58,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:16:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 05:16:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 05:16:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 05:16:58,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:16:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 05:16:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 05:16:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 05:16:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:16:58,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:16:58,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:16:58,573 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:16:58,575 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:16:58,738 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-06 05:16:58,738 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:16:58,775 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:16:58,775 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-12-06 05:16:58,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:58 BoogieIcfgContainer [2024-12-06 05:16:58,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:16:58,777 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:16:58,777 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:16:58,785 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:16:58,785 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:58" (1/1) ... [2024-12-06 05:16:58,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:16:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:16:58,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2024-12-06 05:16:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2024-12-06 05:16:58,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 05:16:58,842 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:16:58,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:16:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:16:58,986 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 05:16:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:16:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2024-12-06 05:16:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-12-06 05:16:59,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 05:16:59,014 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:16:59,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:16:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:16:59,077 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:16:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:16:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:16:59,172 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:16:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:16:59,201 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 05:16:59,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:16:59 ImpRootNode [2024-12-06 05:16:59,224 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:16:59,225 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:16:59,225 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:16:59,225 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:16:59,226 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:16:58" (3/4) ... [2024-12-06 05:16:59,227 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 05:16:59,259 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-12-06 05:16:59,294 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 05:16:59,295 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 05:16:59,295 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:16:59,295 INFO L158 Benchmark]: Toolchain (without parser) took 1245.95ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 75.8MB in the end (delta: 16.3MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-12-06 05:16:59,296 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:16:59,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.73ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 74.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:16:59,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.35ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 72.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:16:59,297 INFO L158 Benchmark]: Boogie Preprocessor took 23.41ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.5MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:16:59,297 INFO L158 Benchmark]: RCFGBuilder took 328.23ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 54.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:16:59,297 INFO L158 Benchmark]: CodeCheck took 448.00ms. Allocated memory is still 117.4MB. Free memory was 54.3MB in the beginning and 80.3MB in the end (delta: -25.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:16:59,297 INFO L158 Benchmark]: Witness Printer took 69.73ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 75.8MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:16:59,299 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 14 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1053]: a call to reach_error is reachable a call to reach_error is reachable 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] reach_error() VAL [head={-2:0}, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.73ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 74.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.35ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 72.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.41ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.5MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 328.23ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 54.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 448.00ms. Allocated memory is still 117.4MB. Free memory was 54.3MB in the beginning and 80.3MB in the end (delta: -25.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.73ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 75.8MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 05:16:59,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69bb783d-443b-4a23-ab0c-c9a1df38426f/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