./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-token-1.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_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/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_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/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_0c312fba-2698-43e7-8d9d-3374f297d6ae/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 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:07:52,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:07:53,020 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 05:07:53,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:07:53,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:07:53,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:07:53,043 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:07:53,043 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:07:53,043 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:07:53,044 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:07:53,044 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:07:53,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:07:53,044 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 05:07:53,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:07:53,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 05:07:53,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:07:53,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:07:53,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:07:53,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:07:53,045 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 05:07:53,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:07:53,045 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:07:53,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:07:53,045 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:07:53,045 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:07:53,045 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:07:53,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:07:53,045 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:07:53,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:07:53,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:07:53,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:07:53,046 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:07:53,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:07:53,046 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/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 -> 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 [2024-12-06 05:07:53,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:07:53,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:07:53,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:07:53,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:07:53,261 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:07:53,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/forester-heap/sll-token-1.i [2024-12-06 05:07:55,938 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/data/5dda9b4ca/1fa7894c7a154a06a22493608ea85511/FLAG5abc939e3 [2024-12-06 05:07:56,165 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:07:56,166 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i [2024-12-06 05:07:56,175 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/data/5dda9b4ca/1fa7894c7a154a06a22493608ea85511/FLAG5abc939e3 [2024-12-06 05:07:56,186 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/data/5dda9b4ca/1fa7894c7a154a06a22493608ea85511 [2024-12-06 05:07:56,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:07:56,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:07:56,191 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:07:56,191 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:07:56,195 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:07:56,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,196 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78efa88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56, skipping insertion in model container [2024-12-06 05:07:56,197 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,224 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:07:56,445 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22162,22175] [2024-12-06 05:07:56,450 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22311,22324] [2024-12-06 05:07:56,451 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22402,22415] [2024-12-06 05:07:56,452 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22484,22497] [2024-12-06 05:07:56,453 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22562,22575] [2024-12-06 05:07:56,455 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22708,22721] [2024-12-06 05:07:56,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:07:56,465 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:07:56,497 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22162,22175] [2024-12-06 05:07:56,499 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22311,22324] [2024-12-06 05:07:56,500 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22402,22415] [2024-12-06 05:07:56,501 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22484,22497] [2024-12-06 05:07:56,502 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22562,22575] [2024-12-06 05:07:56,504 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_0c312fba-2698-43e7-8d9d-3374f297d6ae/sv-benchmarks/c/forester-heap/sll-token-1.i[22708,22721] [2024-12-06 05:07:56,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:07:56,529 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:07:56,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56 WrapperNode [2024-12-06 05:07:56,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:07:56,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:07:56,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:07:56,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:07:56,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,563 INFO L138 Inliner]: procedures = 119, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 114 [2024-12-06 05:07:56,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:07:56,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:07:56,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:07:56,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:07:56,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,580 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,581 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,590 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:07:56,590 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:07:56,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:07:56,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:07:56,591 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:07:56,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:07:56,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:07:56,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:07:56,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:07:56,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:07:56,737 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:07:56,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:07:56,901 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-06 05:07:56,901 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:07:56,927 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:07:56,928 INFO L312 CfgBuilder]: Removed 9 assume(true) statements. [2024-12-06 05:07:56,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:07:56 BoogieIcfgContainer [2024-12-06 05:07:56,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:07:56,929 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:07:56,929 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:07:56,938 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:07:56,938 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:07:56" (1/1) ... [2024-12-06 05:07:56,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:07:56,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:07:56,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 41 states and 64 transitions. [2024-12-06 05:07:56,990 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 64 transitions. [2024-12-06 05:07:56,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:07:56,992 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:07:56,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:07:57,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:07:57,130 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 05:07:57,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:07:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 41 states and 59 transitions. [2024-12-06 05:07:57,151 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 59 transitions. [2024-12-06 05:07:57,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 05:07:57,151 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:07:57,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:07:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:07:57,248 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 05:07:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:07:57,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 39 states and 55 transitions. [2024-12-06 05:07:57,272 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2024-12-06 05:07:57,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 05:07:57,272 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:07:57,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:07:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:07:57,368 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 05:07:57,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:07:57,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 43 states and 61 transitions. [2024-12-06 05:07:57,414 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2024-12-06 05:07:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 05:07:57,415 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:07:57,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:07:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:07:57,452 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 05:07:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:07:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 43 states and 57 transitions. [2024-12-06 05:07:57,457 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2024-12-06 05:07:57,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 05:07:57,457 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:07:57,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:07:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:07:57,538 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 05:07:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:07:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2024-12-06 05:07:57,596 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-12-06 05:07:57,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 05:07:57,596 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:07:57,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:07:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:07:57,624 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:07:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:07:57,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:07:57,751 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:07:57,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:07:57,787 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-12-06 05:07:57,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:07:57 ImpRootNode [2024-12-06 05:07:57,810 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:07:57,810 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:07:57,811 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:07:57,811 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:07:57,811 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:07:56" (3/4) ... [2024-12-06 05:07:57,812 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 05:07:57,847 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-12-06 05:07:57,881 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 05:07:57,881 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 05:07:57,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:07:57,882 INFO L158 Benchmark]: Toolchain (without parser) took 1691.91ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 60.3MB in the end (delta: 55.7MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-12-06 05:07:57,882 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:07:57,882 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.35ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:07:57,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.84ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:07:57,883 INFO L158 Benchmark]: Boogie Preprocessor took 26.27ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:07:57,883 INFO L158 Benchmark]: RCFGBuilder took 337.82ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 80.0MB in the end (delta: 15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:07:57,883 INFO L158 Benchmark]: CodeCheck took 881.24ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 64.3MB in the end (delta: 15.8MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2024-12-06 05:07:57,883 INFO L158 Benchmark]: Witness Printer took 70.57ms. Allocated memory is still 142.6MB. Free memory was 64.3MB in the beginning and 60.3MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:07:57,885 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, 41 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 67 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 246 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 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: 1031]: a call to reach_error is reachable a call to reach_error is reachable 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={-2:0}, x={-2:0}] [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={-2:0}, x={-2:0}] [L1024] COND FALSE !(!(((void*)0) != x)) VAL [head={-2:0}, x={-2:0}] [L1024] COND FALSE !(0) VAL [head={-2:0}, x={-2:0}] [L1026] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data VAL [head={-2:0}, x={-2:0}] [L1031] COND TRUE !(2 == x->data) [L1031] reach_error() VAL [head={-2:0}, x={-2:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.35ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.4MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.84ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.27ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 95.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 337.82ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 80.0MB in the end (delta: 15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 881.24ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 64.3MB in the end (delta: 15.8MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * Witness Printer took 70.57ms. Allocated memory is still 142.6MB. Free memory was 64.3MB in the beginning and 60.3MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 05:07:57,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c312fba-2698-43e7-8d9d-3374f297d6ae/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