./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/forester-heap/dll-sorted-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk --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 4b55b51cb0b3b4f908f36b1c6f95a18eadc174b8702aa08ef4d6f9775df6bb52 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:37:50,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:37:51,064 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:37:51,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:37:51,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:37:51,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:37:51,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:37:51,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:37:51,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:37:51,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:37:51,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:37:51,113 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:37:51,114 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:37:51,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:37:51,114 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:37:51,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:37:51,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:37:51,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:37:51,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:37:51,118 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:37:51,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:37:51,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:37:51,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:37:51,123 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:37:51,123 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:37:51,123 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:37:51,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:37:51,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:37:51,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:37:51,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:37:51,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:37:51,125 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:37:51,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:37:51,125 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b55b51cb0b3b4f908f36b1c6f95a18eadc174b8702aa08ef4d6f9775df6bb52 [2024-11-09 00:37:51,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:37:51,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:37:51,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:37:51,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:37:51,437 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:37:51,439 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/forester-heap/dll-sorted-1.i Unable to find full path for "g++" [2024-11-09 00:37:53,436 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:37:53,830 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:37:53,831 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i [2024-11-09 00:37:53,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/data/d468b1b57/be58e3a38acd424fb0c2b24149b06555/FLAG80a8c1bc1 [2024-11-09 00:37:54,020 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/data/d468b1b57/be58e3a38acd424fb0c2b24149b06555 [2024-11-09 00:37:54,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:37:54,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:37:54,028 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:37:54,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:37:54,034 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:37:54,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5abb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54, skipping insertion in model container [2024-11-09 00:37:54,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:37:54,469 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2024-11-09 00:37:54,478 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2024-11-09 00:37:54,485 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2024-11-09 00:37:54,487 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2024-11-09 00:37:54,491 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2024-11-09 00:37:54,493 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2024-11-09 00:37:54,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:37:54,512 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:37:54,559 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22384,22397] [2024-11-09 00:37:54,562 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22614,22627] [2024-11-09 00:37:54,566 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[22989,23002] [2024-11-09 00:37:54,567 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23053,23066] [2024-11-09 00:37:54,568 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23184,23197] [2024-11-09 00:37:54,569 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_466c6c7c-1df2-49d8-8126-475de952b16b/sv-benchmarks/c/forester-heap/dll-sorted-1.i[23248,23261] [2024-11-09 00:37:54,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:37:54,612 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:37:54,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54 WrapperNode [2024-11-09 00:37:54,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:37:54,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:37:54,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:37:54,615 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:37:54,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,639 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,672 INFO L138 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 184 [2024-11-09 00:37:54,672 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:37:54,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:37:54,673 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:37:54,673 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:37:54,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,694 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,707 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,714 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,717 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:37:54,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:37:54,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:37:54,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:37:54,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:37:54" (1/1) ... [2024-11-09 00:37:54,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:37:54,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:37:54,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:37:54,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:37:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:37:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:37:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 00:37:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:37:54,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 00:37:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 00:37:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:37:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:37:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:37:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:37:54,960 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:37:54,966 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:37:55,307 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-09 00:37:55,307 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:37:55,418 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:37:55,419 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-09 00:37:55,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:37:55 BoogieIcfgContainer [2024-11-09 00:37:55,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:37:55,420 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:37:55,420 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:37:55,431 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:37:55,431 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:37:55" (1/1) ... [2024-11-09 00:37:55,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:37:55,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:37:55,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 48 states and 77 transitions. [2024-11-09 00:37:55,550 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 77 transitions. [2024-11-09 00:37:55,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:37:55,553 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:37:55,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:37:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:37:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:37:55,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:37:55,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 48 states and 73 transitions. [2024-11-09 00:37:55,806 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2024-11-09 00:37:55,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:37:55,806 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:37:55,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:37:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:37:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:37:56,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:37:56,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 50 states and 76 transitions. [2024-11-09 00:37:56,073 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 76 transitions. [2024-11-09 00:37:56,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:37:56,074 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:37:56,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:37:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:37:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:37:56,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:37:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 48 states and 74 transitions. [2024-11-09 00:37:56,618 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 74 transitions. [2024-11-09 00:37:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 00:37:56,619 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:37:56,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:37:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:37:56,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:37:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:37:56,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 48 states and 69 transitions. [2024-11-09 00:37:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 69 transitions. [2024-11-09 00:37:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 00:37:56,747 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:37:56,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:37:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:37:56,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:37:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:37:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:37:57,107 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:37:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:37:57,240 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2024-11-09 00:37:57,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:37:57 ImpRootNode [2024-11-09 00:37:57,282 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:37:57,283 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:37:57,283 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:37:57,283 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:37:57,284 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:37:55" (3/4) ... [2024-11-09 00:37:57,285 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 00:37:57,350 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:37:57,350 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:37:57,352 INFO L158 Benchmark]: Toolchain (without parser) took 3324.35ms. Allocated memory was 148.9MB in the beginning and 209.7MB in the end (delta: 60.8MB). Free memory was 114.0MB in the beginning and 101.2MB in the end (delta: 12.8MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. [2024-11-09 00:37:57,353 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 148.9MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:37:57,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.60ms. Allocated memory is still 148.9MB. Free memory was 113.5MB in the beginning and 92.0MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 00:37:57,354 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.04ms. Allocated memory is still 148.9MB. Free memory was 92.0MB in the beginning and 89.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:37:57,354 INFO L158 Benchmark]: Boogie Preprocessor took 45.05ms. Allocated memory is still 148.9MB. Free memory was 89.8MB in the beginning and 87.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:37:57,356 INFO L158 Benchmark]: RCFGBuilder took 700.84ms. Allocated memory is still 148.9MB. Free memory was 87.8MB in the beginning and 59.0MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-09 00:37:57,357 INFO L158 Benchmark]: CodeCheck took 1862.04ms. Allocated memory was 148.9MB in the beginning and 209.7MB in the end (delta: 60.8MB). Free memory was 59.0MB in the beginning and 103.3MB in the end (delta: -44.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2024-11-09 00:37:57,357 INFO L158 Benchmark]: Witness Printer took 67.53ms. Allocated memory is still 209.7MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:37:57,359 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, 48 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 116 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 41 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 241 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 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: 1038]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); [L998] head->next = ((void*)0) [L999] head->prev = ((void*)0) [L1000] head->data = 0 [L1002] SLL* x = head; [L1003] int marked = 0; VAL [head={-1:0}, marked=0, x={-1:0}] [L1006] COND TRUE __VERIFIER_nondet_int() || !marked [L1009] x->next = malloc(sizeof(SLL)) [L1010] EXPR x->next [L1010] x->next->prev = x [L1011] EXPR x->next [L1011] x = x->next [L1012] x->next = ((void*)0) [L1014] COND TRUE __VERIFIER_nondet_int() [L1016] marked = 1 [L1019] COND TRUE \read(marked) [L1020] x->data = 1 VAL [head={-1:0}, marked=1, x={22427:0}] [L1006] COND FALSE !(__VERIFIER_nondet_int() || !marked) [L1025] x = head VAL [head={-1:0}, x={-1:0}] [L1027] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, x={-1:0}] [L1028] marked = 0 VAL [head={-1:0}, x={-1:0}] [L1030] EXPR x->next [L1030] x->next != ((void*)0) && x->next->data == 0 [L1030] EXPR x->next [L1030] EXPR x->next->data [L1030] x->next != ((void*)0) && x->next->data == 0 VAL [head={-1:0}, x={-1:0}] [L1030] COND FALSE !(x->next != ((void*)0) && x->next->data == 0) [L1035] EXPR x->next [L1035] x->next != ((void*)0) && __VERIFIER_nondet_int() [L1035] x->next != ((void*)0) && __VERIFIER_nondet_int() VAL [head={-1:0}, x={-1:0}] [L1035] COND TRUE x->next != ((void*)0) && __VERIFIER_nondet_int() [L1037] EXPR x->next [L1037] x = x->next [L1038] EXPR x->data VAL [head={-1:0}, x={22427:0}] [L1038] COND TRUE !(x->data != 1) [L1038] reach_error() VAL [head={-1:0}, x={22427:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 148.9MB. Free memory is still 120.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 585.60ms. Allocated memory is still 148.9MB. Free memory was 113.5MB in the beginning and 92.0MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.04ms. Allocated memory is still 148.9MB. Free memory was 92.0MB in the beginning and 89.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.05ms. Allocated memory is still 148.9MB. Free memory was 89.8MB in the beginning and 87.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 700.84ms. Allocated memory is still 148.9MB. Free memory was 87.8MB in the beginning and 59.0MB in the end (delta: 28.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * CodeCheck took 1862.04ms. Allocated memory was 148.9MB in the beginning and 209.7MB in the end (delta: 60.8MB). Free memory was 59.0MB in the beginning and 103.3MB in the end (delta: -44.3MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Witness Printer took 67.53ms. Allocated memory is still 209.7MB. Free memory was 103.3MB in the beginning and 101.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-09 00:37:57,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_466c6c7c-1df2-49d8-8126-475de952b16b/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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