./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--target--iscsi--iscsi_target_mod.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--target--iscsi--iscsi_target_mod.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1974ff03b08ed47181f88c6a05ee04806b9d38693f9d1cab1abe5d2f299d0845 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:16:25,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:16:25,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:16:25,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:16:25,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:16:25,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:16:25,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:16:25,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:16:25,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:16:25,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:16:25,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:16:25,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:16:25,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:16:25,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:16:25,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:16:25,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:16:25,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:16:25,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:16:25,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:16:25,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:16:25,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:16:25,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:16:25,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:16:25,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:16:25,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:16:25,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:16:25,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:16:25,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:16:25,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:16:25,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:16:25,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:16:25,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:16:25,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:16:25,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:16:25,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:16:25,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:16:25,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:16:25,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:16:25,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:16:25,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:16:25,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:16:25,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 05:16:25,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:16:25,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:16:25,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:16:25,272 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:16:25,273 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:16:25,273 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:16:25,273 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:16:25,273 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:16:25,279 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:16:25,280 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:16:25,281 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:16:25,281 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:16:25,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:16:25,281 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:16:25,282 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:16:25,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:16:25,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:16:25,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:16:25,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:16:25,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:16:25,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:16:25,286 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:16:25,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:16:25,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:16:25,292 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:16:25,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:16:25,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:16:25,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:16:25,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:16:25,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:16:25,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:16:25,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:16:25,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:16:25,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:16:25,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:16:25,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:16:25,298 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1974ff03b08ed47181f88c6a05ee04806b9d38693f9d1cab1abe5d2f299d0845 [2021-11-03 05:16:25,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:16:25,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:16:25,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:16:25,553 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:16:25,554 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:16:25,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--target--iscsi--iscsi_target_mod.ko-entry_point.cil.out.i [2021-11-03 05:16:25,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data/83976a559/a53b843984e145f5a91e014b6afdbf79/FLAGf587c75f7 [2021-11-03 05:16:27,231 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:16:27,232 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--target--iscsi--iscsi_target_mod.ko-entry_point.cil.out.i [2021-11-03 05:16:27,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data/83976a559/a53b843984e145f5a91e014b6afdbf79/FLAGf587c75f7 [2021-11-03 05:16:27,439 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data/83976a559/a53b843984e145f5a91e014b6afdbf79 [2021-11-03 05:16:27,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:16:27,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:16:27,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:16:27,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:16:27,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:16:27,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:16:27" (1/1) ... [2021-11-03 05:16:27,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef5f0c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:16:27, skipping insertion in model container [2021-11-03 05:16:27,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:16:27" (1/1) ... [2021-11-03 05:16:27,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:16:28,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:16:31,248 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:31,258 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:31,379 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:31,391 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:31,461 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:32,569 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:32,571 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:32,594 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:32,662 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:32,663 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:33,337 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:33,385 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:33,427 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 05:16:33,436 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.IllegalArgumentException: byte size smaller than 1 makes no sense at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.checkIfNecessaryMemoryModelAdaption(CHandler.java:1054) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:279) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1437) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:729) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1068) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1452) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:16:33,443 INFO L168 Benchmark]: Toolchain (without parser) took 5995.43 ms. Allocated memory was 102.8 MB in the beginning and 264.2 MB in the end (delta: 161.5 MB). Free memory was 36.9 MB in the beginning and 140.9 MB in the end (delta: -104.0 MB). Peak memory consumption was 86.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:16:33,444 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:16:33,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 5993.34 ms. Allocated memory was 102.8 MB in the beginning and 264.2 MB in the end (delta: 161.5 MB). Free memory was 36.7 MB in the beginning and 140.9 MB in the end (delta: -104.2 MB). Peak memory consumption was 86.8 MB. Max. memory is 16.1 GB. [2021-11-03 05:16:33,448 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 102.8 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 5993.34 ms. Allocated memory was 102.8 MB in the beginning and 264.2 MB in the end (delta: 161.5 MB). Free memory was 36.7 MB in the beginning and 140.9 MB in the end (delta: -104.2 MB). Peak memory consumption was 86.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: IllegalArgumentException: byte size smaller than 1 makes no sense de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: IllegalArgumentException: byte size smaller than 1 makes no sense: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.preferences.CACSLPreferenceInitializer$MemoryModel.getPreciseEnoughMemoryModelFor(CACSLPreferenceInitializer.java:194) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--target--iscsi--iscsi_target_mod.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1974ff03b08ed47181f88c6a05ee04806b9d38693f9d1cab1abe5d2f299d0845 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:16:35,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:16:35,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:16:35,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:16:35,610 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:16:35,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:16:35,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:16:35,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:16:35,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:16:35,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:16:35,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:16:35,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:16:35,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:16:35,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:16:35,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:16:35,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:16:35,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:16:35,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:16:35,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:16:35,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:16:35,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:16:35,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:16:35,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:16:35,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:16:35,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:16:35,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:16:35,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:16:35,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:16:35,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:16:35,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:16:35,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:16:35,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:16:35,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:16:35,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:16:35,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:16:35,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:16:35,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:16:35,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:16:35,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:16:35,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:16:35,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:16:35,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 05:16:35,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:16:35,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:16:35,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:16:35,691 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:16:35,692 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:16:35,692 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:16:35,692 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:16:35,692 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:16:35,692 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:16:35,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:16:35,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:16:35,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:16:35,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:16:35,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:16:35,694 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:16:35,694 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:16:35,695 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:16:35,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:16:35,695 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:16:35,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:16:35,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:16:35,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:16:35,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:16:35,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:16:35,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:16:35,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:16:35,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:16:35,697 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:16:35,697 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:16:35,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:16:35,697 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:16:35,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:16:35,698 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1974ff03b08ed47181f88c6a05ee04806b9d38693f9d1cab1abe5d2f299d0845 [2021-11-03 05:16:36,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:16:36,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:16:36,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:16:36,080 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:16:36,083 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:16:36,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--target--iscsi--iscsi_target_mod.ko-entry_point.cil.out.i [2021-11-03 05:16:36,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data/d708827a6/e535de1e59ea4439a2c8e3a88b4bfddf/FLAGfa2594c06 [2021-11-03 05:16:38,042 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:16:38,044 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--target--iscsi--iscsi_target_mod.ko-entry_point.cil.out.i [2021-11-03 05:16:38,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data/d708827a6/e535de1e59ea4439a2c8e3a88b4bfddf/FLAGfa2594c06 [2021-11-03 05:16:38,615 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b2590db-3207-448d-a873-2fd6ae4abaf2/bin/utaipan-aC7eJsxGYH/data/d708827a6/e535de1e59ea4439a2c8e3a88b4bfddf [2021-11-03 05:16:38,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:16:38,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:16:38,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:16:38,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:16:38,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:16:38,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:16:38" (1/1) ... [2021-11-03 05:16:38,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6f198e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:16:38, skipping insertion in model container [2021-11-03 05:16:38,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:16:38" (1/1) ... [2021-11-03 05:16:38,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:16:39,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:16:50,589 ERROR L326 MainTranslator]: Unsupported Syntax: encountered a call to a var args function, var args are not supported at the moment: iscsi_change_param_sprintf [2021-11-03 05:16:50,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61d9c19b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:16:50, skipping insertion in model container [2021-11-03 05:16:50,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:16:50,591 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:16:50,593 INFO L168 Benchmark]: Toolchain (without parser) took 11971.73 ms. Allocated memory was 132.1 MB in the beginning and 316.7 MB in the end (delta: 184.5 MB). Free memory was 76.5 MB in the beginning and 178.7 MB in the end (delta: -102.2 MB). Peak memory consumption was 88.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:16:50,594 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 56.6 MB. Free memory is still 37.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:16:50,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 11968.72 ms. Allocated memory was 132.1 MB in the beginning and 316.7 MB in the end (delta: 184.5 MB). Free memory was 76.3 MB in the beginning and 178.7 MB in the end (delta: -102.4 MB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:16:50,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 56.6 MB. Free memory is still 37.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 11968.72 ms. Allocated memory was 132.1 MB in the beginning and 316.7 MB in the end (delta: 184.5 MB). Free memory was 76.3 MB in the beginning and 178.7 MB in the end (delta: -102.4 MB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 19692]: Unsupported Syntax encountered a call to a var args function, var args are not supported at the moment: iscsi_change_param_sprintf RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN