./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-circular-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-circular-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm --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 f91abcd8d9f4c4a9bb166bca3090e9f421fd2afed3c0226bce3d2e7c0b6ce95e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:23:16,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:23:16,378 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 22:23:16,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:23:16,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:23:16,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:23:16,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:23:16,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:23:16,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:23:16,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:23:16,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:23:16,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:23:16,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:23:16,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:23:16,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:23:16,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:23:16,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:23:16,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:23:16,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:23:16,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:23:16,428 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:23:16,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:23:16,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:23:16,429 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:23:16,429 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:23:16,429 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:23:16,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:23:16,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:23:16,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:23:16,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:23:16,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:23:16,430 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:23:16,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:23:16,430 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_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> f91abcd8d9f4c4a9bb166bca3090e9f421fd2afed3c0226bce3d2e7c0b6ce95e [2024-11-13 22:23:16,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:23:16,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:23:16,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:23:16,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:23:16,794 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:23:16,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/forester-heap/sll-circular-2.i Unable to find full path for "g++" [2024-11-13 22:23:18,683 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:23:19,034 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:23:19,035 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/sv-benchmarks/c/forester-heap/sll-circular-2.i [2024-11-13 22:23:19,047 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/data/077da7330/afc0ee0e5feb43759dee1240756d20fb/FLAGef0862dcf [2024-11-13 22:23:19,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/data/077da7330/afc0ee0e5feb43759dee1240756d20fb [2024-11-13 22:23:19,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:23:19,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:23:19,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:23:19,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:23:19,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:23:19,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,090 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e3ef06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19, skipping insertion in model container [2024-11-13 22:23:19,090 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:23:19,504 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_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/sv-benchmarks/c/forester-heap/sll-circular-2.i[22324,22337] [2024-11-13 22:23:19,509 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_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/sv-benchmarks/c/forester-heap/sll-circular-2.i[22430,22443] [2024-11-13 22:23:19,511 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_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/sv-benchmarks/c/forester-heap/sll-circular-2.i[22554,22567] [2024-11-13 22:23:19,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:23:19,530 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:23:19,588 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_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/sv-benchmarks/c/forester-heap/sll-circular-2.i[22324,22337] [2024-11-13 22:23:19,591 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_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/sv-benchmarks/c/forester-heap/sll-circular-2.i[22430,22443] [2024-11-13 22:23:19,594 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_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/sv-benchmarks/c/forester-heap/sll-circular-2.i[22554,22567] [2024-11-13 22:23:19,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:23:19,622 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:23:19,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19 WrapperNode [2024-11-13 22:23:19,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:23:19,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:23:19,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:23:19,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:23:19,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,638 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,657 INFO L138 Inliner]: procedures = 119, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 108 [2024-11-13 22:23:19,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:23:19,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:23:19,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:23:19,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:23:19,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:23:19,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:23:19,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:23:19,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:23:19,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:23:19" (1/1) ... [2024-11-13 22:23:19,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:23:19,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:23:19,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:23:19,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:23:19,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 22:23:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 22:23:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 22:23:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:23:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 22:23:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 22:23:19,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 22:23:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:23:19,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:23:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:23:19,904 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:23:19,906 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:23:20,105 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-13 22:23:20,106 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:23:20,146 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:23:20,146 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-13 22:23:20,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:23:20 BoogieIcfgContainer [2024-11-13 22:23:20,146 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:23:20,147 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:23:20,147 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:23:20,158 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:23:20,159 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:23:20" (1/1) ... [2024-11-13 22:23:20,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:23:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:23:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2024-11-13 22:23:20,234 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2024-11-13 22:23:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 22:23:20,238 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:23:20,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:23:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:23:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:23:20,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:23:20,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2024-11-13 22:23:20,428 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2024-11-13 22:23:20,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 22:23:20,429 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:23:20,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:23:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:23:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:23:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:23:20,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2024-11-13 22:23:20,961 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2024-11-13 22:23:20,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 22:23:20,961 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:23:20,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:23:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:23:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:23:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:23:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2024-11-13 22:23:21,062 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2024-11-13 22:23:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:23:21,065 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:23:21,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:23:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:23:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:23:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:23:21,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 35 states and 50 transitions. [2024-11-13 22:23:21,138 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2024-11-13 22:23:21,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 22:23:21,138 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:23:21,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:23:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:23:21,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 22:23:21,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:23:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 39 states and 57 transitions. [2024-11-13 22:23:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2024-11-13 22:23:21,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 22:23:21,495 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:23:21,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:23:21,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:23:21,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:23:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:23:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:23:21,659 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:23:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:23:21,699 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-11-13 22:23:21,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:23:21 ImpRootNode [2024-11-13 22:23:21,738 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:23:21,739 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:23:21,740 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:23:21,740 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:23:21,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:23:20" (3/4) ... [2024-11-13 22:23:21,741 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 22:23:21,785 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 22:23:21,785 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:23:21,786 INFO L158 Benchmark]: Toolchain (without parser) took 2707.45ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 92.4MB in the beginning and 310.0MB in the end (delta: -217.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-13 22:23:21,786 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:23:21,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.16ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 75.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:23:21,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.85ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:23:21,787 INFO L158 Benchmark]: Boogie Preprocessor took 26.20ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 72.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:23:21,787 INFO L158 Benchmark]: RCFGBuilder took 461.58ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 56.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:23:21,788 INFO L158 Benchmark]: CodeCheck took 1591.62ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.2MB in the beginning and 312.1MB in the end (delta: -255.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:23:21,788 INFO L158 Benchmark]: Witness Printer took 45.58ms. Allocated memory is still 352.3MB. Free memory was 312.1MB in the beginning and 310.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:23:21,790 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, 29 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 168 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 147 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 75 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 262 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 122 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - CounterExampleResult [Line: 1032]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); [L997] head->next = head [L998] head->data = 0 [L1000] SLL* x = head; [L1001] int state = 1; VAL [head={-1:0}, state=1, x={-1:0}] [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1025] x->data = state [L1027] EXPR head->next [L1027] x = head->next [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, x={-1:0}] [L1030] COND TRUE x->data != 0 [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data [L1032] EXPR x->data [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data VAL [head={-1:0}, x={-1:0}] [L1032] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1032] reach_error() VAL [head={-1:0}, x={-1:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.16ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 75.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.85ms. Allocated memory is still 117.4MB. Free memory was 75.0MB in the beginning and 73.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.20ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 72.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 461.58ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 56.5MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1591.62ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 56.2MB in the beginning and 312.1MB in the end (delta: -255.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.58ms. Allocated memory is still 352.3MB. Free memory was 312.1MB in the beginning and 310.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 22:23:21,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94dc5b0d-d15b-448b-8d1a-6c2af317fe6f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE