./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/unroll-5.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 958ec4d9 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/unroll-5.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:43:13,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:43:13,575 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 14:43:13,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:43:13,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:43:13,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:43:13,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:43:13,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:43:13,596 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:43:13,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:43:13,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:43:13,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:43:13,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:43:13,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:43:13,598 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:43:13,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:43:13,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:43:13,598 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:43:13,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 14:43:13,599 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:43:13,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:43:13,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:43:13,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:43:13,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:43:13,612 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:43:13,613 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:43:13,613 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:43:13,613 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:43:13,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:43:13,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:43:13,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:43:13,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:43:13,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:43:13,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:43:13,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:43:13,615 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:43:13,616 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 14:43:13,616 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 14:43:13,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:43:13,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:43:13,617 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:43:13,617 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:43:13,617 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:43:13,617 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:43:13,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:43:13,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:43:13,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:43:13,873 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:43:13,873 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:43:13,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-02-07 14:43:15,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:43:15,288 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:43:15,290 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-02-07 14:43:15,300 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/756813c6a/5868e5c58e014cf5b775a176d64b0d19/FLAG761df44bf [2024-02-07 14:43:15,314 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/756813c6a/5868e5c58e014cf5b775a176d64b0d19 [2024-02-07 14:43:15,316 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:43:15,316 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:43:15,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/unroll-5.wvr.yml/witness.yml [2024-02-07 14:43:15,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:43:15,376 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:43:15,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:43:15,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:43:15,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:43:15,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:43:15" (1/2) ... [2024-02-07 14:43:15,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5711d8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:15, skipping insertion in model container [2024-02-07 14:43:15,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:43:15" (1/2) ... [2024-02-07 14:43:15,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6779727e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:15, skipping insertion in model container [2024-02-07 14:43:15,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:43:15" (2/2) ... [2024-02-07 14:43:15,385 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5711d8cd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:43:15, skipping insertion in model container [2024-02-07 14:43:15,385 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:43:15" (2/2) ... [2024-02-07 14:43:15,385 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:43:15,404 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:43:15,405 INFO L76 edCorrectnessWitness]: Location invariant before [L52-L52] (((((5U <= i && i <= 4294967294U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-02-07 14:43:15,405 INFO L76 edCorrectnessWitness]: Location invariant before [L110-L110] (((long long )i + (long long )x2 >= 0LL) && ((long long )i - (long long )x2 >= 0LL)) && ((long long )i - (long long )size >= 0LL) [2024-02-07 14:43:15,405 INFO L76 edCorrectnessWitness]: Location invariant before [L104-L104] ((((2147483648LL + (long long )i) + (long long )x2 >= 0LL) && ((2147483647LL - (long long )i) + (long long )x2 >= 0LL)) && ((2147483648LL + (long long )i) - (long long )x2 >= 0LL)) && ((2147483647LL - (long long )i) - (long long )x2 >= 0LL) [2024-02-07 14:43:15,405 INFO L76 edCorrectnessWitness]: Location invariant before [L108-L108] ((-1LL - (long long )i) + (long long )size >= 0LL) && ((((((((((((((((8 <= i && i <= 2147483646) && (-17LL + (long long )i) + (long long )size >= 0LL) && (-9LL + (long long )size) + (long long )x2 >= 0LL) && (-8LL + (long long )i) + (long long )x2 >= 0LL) && (-9LL + (long long )size) - (long long )x2 >= 0LL) && (-8LL + (long long )i) - (long long )x2 >= 0LL) && i != 0) && i != 1) || ((((((((-15LL + (long long )i) + (long long )size >= 0LL && (-8LL + (long long )size) + (long long )x2 >= 0LL) && (-7LL + (long long )i) + (long long )x2 >= 0LL) && (7LL - (long long )i) + (long long )x2 >= 0LL) && (-8LL + (long long )size) - (long long )x2 >= 0LL) && (-7LL + (long long )i) - (long long )x2 >= 0LL) && (7LL - (long long )i) - (long long )x2 >= 0LL) && i == 7)) || ((((((((-13LL + (long long )i) + (long long )size >= 0LL && (-7LL + (long long )size) + (long long )x2 >= 0LL) && (-6LL + (long long )i) + (long long )x2 >= 0LL) && (6LL - (long long )i) + (long long )x2 >= 0LL) && (-7LL + (long long )size) - (long long )x2 >= 0LL) && (-6LL + (long long )i) - (long long )x2 >= 0LL) && (6LL - (long long )i) - (long long )x2 >= 0LL) && i == 6)) || ((((((((-11LL + (long long )i) + (long long )size >= 0LL && (-6LL + (long long )size) + (long long )x2 >= 0LL) && (-5LL + (long long )i) + (long long )x2 >= 0LL) && (5LL - (long long )i) + (long long )x2 >= 0LL) && (-6LL + (long long )size) - (long long )x2 >= 0LL) && (-5LL + (long long )i) - (long long )x2 >= 0LL) && (5LL - (long long )i) - (long long )x2 >= 0LL) && i == 5)) || ((((((((-9LL + (long long )i) + (long long )size >= 0LL && (-5LL + (long long )size) + (long long )x2 >= 0LL) && (-4LL + (long long )i) + (long long )x2 >= 0LL) && (4LL - (long long )i) + (long long )x2 >= 0LL) && (-5LL + (long long )size) - (long long )x2 >= 0LL) && (-4LL + (long long )i) - (long long )x2 >= 0LL) && (4LL - (long long )i) - (long long )x2 >= 0LL) && i == 4)) || ((((((((-7LL + (long long )i) + (long long )size >= 0LL && (-4LL + (long long )size) + (long long )x2 >= 0LL) && (-3LL + (long long )i) + (long long )x2 >= 0LL) && (3LL - (long long )i) + (long long )x2 >= 0LL) && (-4LL + (long long )size) - (long long )x2 >= 0LL) && (-3LL + (long long )i) - (long long )x2 >= 0LL) && (3LL - (long long )i) - (long long )x2 >= 0LL) && i == 3)) || ((((((((-5LL + (long long )i) + (long long )size >= 0LL && (-3LL + (long long )size) + (long long )x2 >= 0LL) && (-2LL + (long long )i) + (long long )x2 >= 0LL) && (2LL - (long long )i) + (long long )x2 >= 0LL) && (-3LL + (long long )size) - (long long )x2 >= 0LL) && (-2LL + (long long )i) - (long long )x2 >= 0LL) && (2LL - (long long )i) - (long long )x2 >= 0LL) && i == 2)) || ((((((((-3LL + (long long )i) + (long long )size >= 0LL && (-2LL + (long long )size) + (long long )x2 >= 0LL) && (-1LL + (long long )i) + (long long )x2 >= 0LL) && (1LL - (long long )i) + (long long )x2 >= 0LL) && (-2LL + (long long )size) - (long long )x2 >= 0LL) && (-1LL + (long long )i) - (long long )x2 >= 0LL) && (1LL - (long long )i) - (long long )x2 >= 0LL) && i == 1)) || (((((((((-1LL + (long long )size) + (long long )x2 >= 0LL && (-1LL + (long long )i) + (long long )size >= 0LL) && (0LL - (long long )i) + (long long )x2 >= 0LL) && (long long )i + (long long )x2 >= 0LL) && (-1LL + (long long )size) - (long long )x2 >= 0LL) && (0LL - (long long )i) - (long long )x2 >= 0LL) && (long long )i - (long long )x2 >= 0LL) && 0 == i) && i == 0)) [2024-02-07 14:43:15,405 INFO L76 edCorrectnessWitness]: Location invariant before [L103-L103] ((((2147483648LL + (long long )i) + (long long )x2 >= 0LL) && ((2147483647LL - (long long )i) + (long long )x2 >= 0LL)) && ((2147483648LL + (long long )i) - (long long )x2 >= 0LL)) && ((2147483647LL - (long long )i) - (long long )x2 >= 0LL) [2024-02-07 14:43:15,405 INFO L76 edCorrectnessWitness]: Location invariant before [L65-L65] 1U <= i || i == 1U [2024-02-07 14:43:15,406 INFO L76 edCorrectnessWitness]: Location invariant before [L62-L62] (0U == i && i == 0U) || i <= 4294967294U [2024-02-07 14:43:15,406 INFO L76 edCorrectnessWitness]: Location invariant before [L106-L106] ((((2147483648LL + (long long )i) + (long long )x2 >= 0LL) && ((2147483647LL - (long long )i) + (long long )x2 >= 0LL)) && ((2147483648LL + (long long )i) - (long long )x2 >= 0LL)) && ((2147483647LL - (long long )i) - (long long )x2 >= 0LL) [2024-02-07 14:43:15,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:43:15,590 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] [2024-02-07 14:43:15,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:43:15,624 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:43:15,699 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] Start Parsing Local [2024-02-07 14:43:15,711 ERROR L325 MainTranslator]: Incorrect Syntax: Undeclared variable in ACSL expression: i [2024-02-07 14:43:15,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6779727e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:43:15, skipping insertion in model container [2024-02-07 14:43:15,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:43:15,716 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-02-07 14:43:15,719 INFO L158 Benchmark]: Toolchain (without parser) took 340.51ms. Allocated memory is still 174.1MB. Free memory was 114.3MB in the beginning and 99.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-02-07 14:43:15,720 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 121.6MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:43:15,720 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 174.1MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:43:15,732 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.77ms. Allocated memory is still 174.1MB. Free memory was 114.3MB in the beginning and 99.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-02-07 14:43:15,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 121.6MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 174.1MB. Free memory is still 117.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.77ms. Allocated memory is still 174.1MB. Free memory was 114.3MB in the beginning and 99.9MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - SyntaxErrorResult [Line: 103]: Incorrect Syntax Undeclared variable in ACSL expression: i RESULT: Ultimate could not prove your program: Incorrect Syntax 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/unroll-5.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-958ec4d-m [2024-02-07 14:43:17,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 14:43:17,792 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-02-07 14:43:17,796 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 14:43:17,797 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 14:43:17,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 14:43:17,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 14:43:17,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 14:43:17,823 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 14:43:17,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 14:43:17,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 14:43:17,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 14:43:17,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 14:43:17,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 14:43:17,829 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 14:43:17,829 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 14:43:17,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 14:43:17,830 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 14:43:17,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 14:43:17,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 14:43:17,830 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 14:43:17,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 14:43:17,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 14:43:17,832 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-02-07 14:43:17,832 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-02-07 14:43:17,832 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 14:43:17,832 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-02-07 14:43:17,832 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 14:43:17,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 14:43:17,833 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 14:43:17,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 14:43:17,834 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 14:43:17,834 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 14:43:17,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 14:43:17,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 14:43:17,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 14:43:17,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 14:43:17,836 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 14:43:17,836 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-02-07 14:43:17,836 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-02-07 14:43:17,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 14:43:17,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 14:43:17,836 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 14:43:17,837 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 14:43:17,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 14:43:17,837 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-02-07 14:43:17,837 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 14:43:18,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 14:43:18,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 14:43:18,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 14:43:18,199 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 14:43:18,202 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 14:43:18,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/unroll-5.wvr.yml/witness.yml [2024-02-07 14:43:18,318 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 14:43:18,318 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 14:43:18,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-02-07 14:43:19,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 14:43:19,697 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 14:43:19,697 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c [2024-02-07 14:43:19,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78fd6c4f0/4d749c539eb14249a1c5e8fa06fc0d7c/FLAGf2d9a7aaa [2024-02-07 14:43:20,110 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78fd6c4f0/4d749c539eb14249a1c5e8fa06fc0d7c [2024-02-07 14:43:20,111 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 14:43:20,113 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 14:43:20,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 14:43:20,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 14:43:20,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 14:43:20,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:43:18" (1/2) ... [2024-02-07 14:43:20,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdcfec and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:43:20, skipping insertion in model container [2024-02-07 14:43:20,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 02:43:18" (1/2) ... [2024-02-07 14:43:20,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d3fc353 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 02:43:20, skipping insertion in model container [2024-02-07 14:43:20,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:43:20" (2/2) ... [2024-02-07 14:43:20,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdcfec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:20, skipping insertion in model container [2024-02-07 14:43:20,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 02:43:20" (2/2) ... [2024-02-07 14:43:20,123 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 14:43:20,147 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 14:43:20,148 INFO L76 edCorrectnessWitness]: Location invariant before [L65-L65] 1U <= i || i == 1U [2024-02-07 14:43:20,148 INFO L76 edCorrectnessWitness]: Location invariant before [L106-L106] ((((2147483648LL + (long long )i) + (long long )x2 >= 0LL) && ((2147483647LL - (long long )i) + (long long )x2 >= 0LL)) && ((2147483648LL + (long long )i) - (long long )x2 >= 0LL)) && ((2147483647LL - (long long )i) - (long long )x2 >= 0LL) [2024-02-07 14:43:20,148 INFO L76 edCorrectnessWitness]: Location invariant before [L104-L104] ((((2147483648LL + (long long )i) + (long long )x2 >= 0LL) && ((2147483647LL - (long long )i) + (long long )x2 >= 0LL)) && ((2147483648LL + (long long )i) - (long long )x2 >= 0LL)) && ((2147483647LL - (long long )i) - (long long )x2 >= 0LL) [2024-02-07 14:43:20,148 INFO L76 edCorrectnessWitness]: Location invariant before [L62-L62] (0U == i && i == 0U) || i <= 4294967294U [2024-02-07 14:43:20,149 INFO L76 edCorrectnessWitness]: Location invariant before [L52-L52] (((((5U <= i && i <= 4294967294U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-02-07 14:43:20,149 INFO L76 edCorrectnessWitness]: Location invariant before [L110-L110] (((long long )i + (long long )x2 >= 0LL) && ((long long )i - (long long )x2 >= 0LL)) && ((long long )i - (long long )size >= 0LL) [2024-02-07 14:43:20,149 INFO L76 edCorrectnessWitness]: Location invariant before [L103-L103] ((((2147483648LL + (long long )i) + (long long )x2 >= 0LL) && ((2147483647LL - (long long )i) + (long long )x2 >= 0LL)) && ((2147483648LL + (long long )i) - (long long )x2 >= 0LL)) && ((2147483647LL - (long long )i) - (long long )x2 >= 0LL) [2024-02-07 14:43:20,149 INFO L76 edCorrectnessWitness]: Location invariant before [L108-L108] ((-1LL - (long long )i) + (long long )size >= 0LL) && ((((((((((((((((8 <= i && i <= 2147483646) && (-17LL + (long long )i) + (long long )size >= 0LL) && (-9LL + (long long )size) + (long long )x2 >= 0LL) && (-8LL + (long long )i) + (long long )x2 >= 0LL) && (-9LL + (long long )size) - (long long )x2 >= 0LL) && (-8LL + (long long )i) - (long long )x2 >= 0LL) && i != 0) && i != 1) || ((((((((-15LL + (long long )i) + (long long )size >= 0LL && (-8LL + (long long )size) + (long long )x2 >= 0LL) && (-7LL + (long long )i) + (long long )x2 >= 0LL) && (7LL - (long long )i) + (long long )x2 >= 0LL) && (-8LL + (long long )size) - (long long )x2 >= 0LL) && (-7LL + (long long )i) - (long long )x2 >= 0LL) && (7LL - (long long )i) - (long long )x2 >= 0LL) && i == 7)) || ((((((((-13LL + (long long )i) + (long long )size >= 0LL && (-7LL + (long long )size) + (long long )x2 >= 0LL) && (-6LL + (long long )i) + (long long )x2 >= 0LL) && (6LL - (long long )i) + (long long )x2 >= 0LL) && (-7LL + (long long )size) - (long long )x2 >= 0LL) && (-6LL + (long long )i) - (long long )x2 >= 0LL) && (6LL - (long long )i) - (long long )x2 >= 0LL) && i == 6)) || ((((((((-11LL + (long long )i) + (long long )size >= 0LL && (-6LL + (long long )size) + (long long )x2 >= 0LL) && (-5LL + (long long )i) + (long long )x2 >= 0LL) && (5LL - (long long )i) + (long long )x2 >= 0LL) && (-6LL + (long long )size) - (long long )x2 >= 0LL) && (-5LL + (long long )i) - (long long )x2 >= 0LL) && (5LL - (long long )i) - (long long )x2 >= 0LL) && i == 5)) || ((((((((-9LL + (long long )i) + (long long )size >= 0LL && (-5LL + (long long )size) + (long long )x2 >= 0LL) && (-4LL + (long long )i) + (long long )x2 >= 0LL) && (4LL - (long long )i) + (long long )x2 >= 0LL) && (-5LL + (long long )size) - (long long )x2 >= 0LL) && (-4LL + (long long )i) - (long long )x2 >= 0LL) && (4LL - (long long )i) - (long long )x2 >= 0LL) && i == 4)) || ((((((((-7LL + (long long )i) + (long long )size >= 0LL && (-4LL + (long long )size) + (long long )x2 >= 0LL) && (-3LL + (long long )i) + (long long )x2 >= 0LL) && (3LL - (long long )i) + (long long )x2 >= 0LL) && (-4LL + (long long )size) - (long long )x2 >= 0LL) && (-3LL + (long long )i) - (long long )x2 >= 0LL) && (3LL - (long long )i) - (long long )x2 >= 0LL) && i == 3)) || ((((((((-5LL + (long long )i) + (long long )size >= 0LL && (-3LL + (long long )size) + (long long )x2 >= 0LL) && (-2LL + (long long )i) + (long long )x2 >= 0LL) && (2LL - (long long )i) + (long long )x2 >= 0LL) && (-3LL + (long long )size) - (long long )x2 >= 0LL) && (-2LL + (long long )i) - (long long )x2 >= 0LL) && (2LL - (long long )i) - (long long )x2 >= 0LL) && i == 2)) || ((((((((-3LL + (long long )i) + (long long )size >= 0LL && (-2LL + (long long )size) + (long long )x2 >= 0LL) && (-1LL + (long long )i) + (long long )x2 >= 0LL) && (1LL - (long long )i) + (long long )x2 >= 0LL) && (-2LL + (long long )size) - (long long )x2 >= 0LL) && (-1LL + (long long )i) - (long long )x2 >= 0LL) && (1LL - (long long )i) - (long long )x2 >= 0LL) && i == 1)) || (((((((((-1LL + (long long )size) + (long long )x2 >= 0LL && (-1LL + (long long )i) + (long long )size >= 0LL) && (0LL - (long long )i) + (long long )x2 >= 0LL) && (long long )i + (long long )x2 >= 0LL) && (-1LL + (long long )size) - (long long )x2 >= 0LL) && (0LL - (long long )i) - (long long )x2 >= 0LL) && (long long )i - (long long )x2 >= 0LL) && 0 == i) && i == 0)) [2024-02-07 14:43:20,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:43:20,334 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] [2024-02-07 14:43:20,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:43:20,359 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-02-07 14:43:20,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2024-02-07 14:43:20,389 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] [2024-02-07 14:43:20,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-07 14:43:20,399 INFO L203 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 14:43:20,449 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/unroll-5.wvr.c[2670,2683] Start Parsing Local [2024-02-07 14:43:20,454 ERROR L325 MainTranslator]: Incorrect Syntax: Undeclared variable in ACSL expression: i [2024-02-07 14:43:20,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@d3fc353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 02:43:20, skipping insertion in model container [2024-02-07 14:43:20,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 14:43:20,455 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-02-07 14:43:20,457 INFO L158 Benchmark]: Toolchain (without parser) took 343.09ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 33.5MB in the beginning and 60.3MB in the end (delta: -26.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-02-07 14:43:20,457 INFO L158 Benchmark]: Witness Parser took 0.24ms. Allocated memory is still 60.8MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:43:20,458 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 14:43:20,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.78ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 33.3MB in the beginning and 60.3MB in the end (delta: -26.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-02-07 14:43:20,460 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.24ms. Allocated memory is still 60.8MB. Free memory was 37.2MB in the beginning and 37.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.19ms. Allocated memory is still 60.8MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.78ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 33.3MB in the beginning and 60.3MB in the end (delta: -26.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - SyntaxErrorResult [Line: 103]: Incorrect Syntax Undeclared variable in ACSL expression: i RESULT: Ultimate could not prove your program: Incorrect Syntax Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN