./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-08-08_07-59-58.files/protection-ghost/pthread-numerical-integration.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c091e2ee Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i ./goblint.2024-08-08_07-59-58.files/protection-ghost/pthread-numerical-integration.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_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-tmp.fs.goblint-validation-c091e2e-m [2024-08-14 05:53:49,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 05:53:49,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-08-14 05:53:49,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 05:53:49,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 05:53:49,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 05:53:49,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 05:53:49,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 05:53:49,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 05:53:49,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 05:53:49,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 05:53:49,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 05:53:49,781 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 05:53:49,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 05:53:49,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 05:53:49,784 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 05:53:49,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 05:53:49,785 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 05:53:49,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 05:53:49,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 05:53:49,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 05:53:49,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 05:53:49,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 05:53:49,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 05:53:49,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 05:53:49,790 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 05:53:49,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 05:53:49,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 05:53:49,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 05:53:49,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 05:53:49,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 05:53:49,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 05:53:49,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 05:53:49,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 05:53:49,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 05:53:49,793 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-14 05:53:49,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 05:53:49,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 05:53:49,795 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-14 05:53:49,795 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 05:53:49,795 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-14 05:53:49,796 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-14 05:53:49,796 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:/storage/repos/ultimate/releaseScripts/default/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-14 05:53:50,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 05:53:50,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 05:53:50,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 05:53:50,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 05:53:50,145 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 05:53:50,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i [2024-08-14 05:53:51,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 05:53:51,843 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 05:53:51,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i [2024-08-14 05:53:51,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c93da1977/a985a203c94e42359aaa0bb591219d4c/FLAG6ee5ea7cf [2024-08-14 05:53:52,166 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/c93da1977/a985a203c94e42359aaa0bb591219d4c [2024-08-14 05:53:52,168 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 05:53:52,169 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 05:53:52,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-ghost/pthread-numerical-integration.yml/witness.yml [2024-08-14 05:53:52,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 05:53:52,415 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-14 05:53:52,418 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 05:53:52,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 05:53:52,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 05:53:52,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 05:53:52" (1/2) ... [2024-08-14 05:53:52,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c0e79e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 05:53:52, skipping insertion in model container [2024-08-14 05:53:52,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 05:53:52" (1/2) ... [2024-08-14 05:53:52,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2185ae4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 05:53:52, skipping insertion in model container [2024-08-14 05:53:52,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 05:53:52" (2/2) ... [2024-08-14 05:53:52,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c0e79e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 05:53:52, skipping insertion in model container [2024-08-14 05:53:52,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 05:53:52" (2/2) ... [2024-08-14 05:53:52,427 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-14 05:53:52,672 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-14 05:53:52,673 INFO L97 edCorrectnessWitness]: Location invariant before [L1391-L1394] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((! multithreaded || iteration == 0) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.)) [2024-08-14 05:53:52,674 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-14 05:53:52,674 INFO L103 edCorrectnessWitness]: ghost_variable area_mutex_locked = 0 [2024-08-14 05:53:52,674 INFO L106 edCorrectnessWitness]: ghost_update [L1341-L1341] area_mutex_locked = 0; [2024-08-14 05:53:52,674 INFO L106 edCorrectnessWitness]: ghost_update [L1390-L1390] multithreaded = 1; [2024-08-14 05:53:52,674 INFO L106 edCorrectnessWitness]: ghost_update [L1339-L1339] area_mutex_locked = 1; [2024-08-14 05:53:52,722 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-14 05:53:52,905 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i[951,964] [2024-08-14 05:53:53,279 ERROR L334 MainTranslator]: Unsupported Syntax: Unsupported function: pthread_attr_init [2024-08-14 05:53:53,281 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2185ae4f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 05:53:53, skipping insertion in model container [2024-08-14 05:53:53,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 05:53:53,281 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-08-14 05:53:53,283 INFO L158 Benchmark]: Toolchain (without parser) took 867.48ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 143.1MB in the end (delta: -15.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-08-14 05:53:53,284 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 180.4MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 05:53:53,284 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 05:53:53,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 863.63ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 143.1MB in the end (delta: -15.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-08-14 05:53:53,287 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 180.4MB. Free memory is still 146.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 863.63ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 143.1MB in the end (delta: -15.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1374]: Unsupported Syntax Unsupported function: pthread_attr_init 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i ./goblint.2024-08-08_07-59-58.files/protection-ghost/pthread-numerical-integration.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_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-tmp.fs.goblint-validation-c091e2e-m [2024-08-14 05:53:55,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 05:53:55,394 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-08-14 05:53:55,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 05:53:55,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 05:53:55,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 05:53:55,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 05:53:55,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 05:53:55,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 05:53:55,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 05:53:55,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 05:53:55,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 05:53:55,433 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 05:53:55,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 05:53:55,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 05:53:55,434 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 05:53:55,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 05:53:55,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 05:53:55,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 05:53:55,438 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 05:53:55,438 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 05:53:55,439 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-08-14 05:53:55,439 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 05:53:55,440 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-08-14 05:53:55,440 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 05:53:55,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 05:53:55,440 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 05:53:55,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 05:53:55,441 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 05:53:55,441 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 05:53:55,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 05:53:55,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-08-14 05:53:55,442 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 05:53:55,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 05:53:55,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 05:53:55,442 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-08-14 05:53:55,443 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-08-14 05:53:55,443 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-08-14 05:53:55,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 05:53:55,446 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-08-14 05:53:55,447 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 05:53:55,447 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-08-14 05:53:55,447 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-08-14 05:53:55,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 05:53:55,448 INFO L153 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:/storage/repos/ultimate/releaseScripts/default/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-08-14 05:53:55,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 05:53:55,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 05:53:55,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 05:53:55,806 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 05:53:55,806 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 05:53:55,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i [2024-08-14 05:53:57,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 05:53:57,677 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 05:53:57,681 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i [2024-08-14 05:53:57,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/decccb0de/c5b60cfe62624aa3a83277110d6e8cd0/FLAGfe834ff76 [2024-08-14 05:53:57,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/decccb0de/c5b60cfe62624aa3a83277110d6e8cd0 [2024-08-14 05:53:57,957 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 05:53:57,958 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 05:53:57,958 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/./goblint.2024-08-08_07-59-58.files/protection-ghost/pthread-numerical-integration.yml/witness.yml [2024-08-14 05:53:58,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 05:53:58,227 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-08-14 05:53:58,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 05:53:58,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 05:53:58,234 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 05:53:58,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 05:53:57" (1/2) ... [2024-08-14 05:53:58,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486add4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 05:53:58, skipping insertion in model container [2024-08-14 05:53:58,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 05:53:57" (1/2) ... [2024-08-14 05:53:58,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1aa0a870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 05:53:58, skipping insertion in model container [2024-08-14 05:53:58,238 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 05:53:58" (2/2) ... [2024-08-14 05:53:58,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486add4e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 05:53:58, skipping insertion in model container [2024-08-14 05:53:58,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.08 05:53:58" (2/2) ... [2024-08-14 05:53:58,238 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-08-14 05:53:58,502 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-08-14 05:53:58,503 INFO L97 edCorrectnessWitness]: Location invariant before [L1391-L1394] ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((! multithreaded || iteration == 0) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || iteration == 0)) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || (1 <= numberOfIntervals && numberOfIntervals <= 8))) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || interval == 0)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || four == 4.)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || 0 <= iCount)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || distance == 0.5)) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || (1 <= num_threads && num_threads <= 8))) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || intervalMidPoint == 0.)) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.))) && (! multithreaded || (0.125 <= intervalWidth && intervalWidth <= 1.)) [2024-08-14 05:53:58,503 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-08-14 05:53:58,503 INFO L103 edCorrectnessWitness]: ghost_variable area_mutex_locked = 0 [2024-08-14 05:53:58,504 INFO L106 edCorrectnessWitness]: ghost_update [L1390-L1390] multithreaded = 1; [2024-08-14 05:53:58,505 INFO L106 edCorrectnessWitness]: ghost_update [L1339-L1339] area_mutex_locked = 1; [2024-08-14 05:53:58,505 INFO L106 edCorrectnessWitness]: ghost_update [L1341-L1341] area_mutex_locked = 0; [2024-08-14 05:53:58,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-08-14 05:53:58,751 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-numerical-integration.i[951,964] [2024-08-14 05:53:59,060 ERROR L334 MainTranslator]: Unsupported Syntax: Unsupported function: pthread_attr_init [2024-08-14 05:53:59,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1aa0a870 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.08 05:53:59, skipping insertion in model container [2024-08-14 05:53:59,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 05:53:59,063 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-08-14 05:53:59,065 INFO L158 Benchmark]: Toolchain (without parser) took 837.83ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 44.8MB in the end (delta: 22.3MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-08-14 05:53:59,066 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 41.8MB in the beginning and 41.7MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 05:53:59,066 INFO L158 Benchmark]: Witness Parser took 0.23ms. Allocated memory is still 65.0MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 05:53:59,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 833.91ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 45.0MB in the end (delta: 22.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2024-08-14 05:53:59,069 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 65.0MB. Free memory was 41.8MB in the beginning and 41.7MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.23ms. Allocated memory is still 65.0MB. Free memory is still 38.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 833.91ms. Allocated memory is still 92.3MB. Free memory was 67.1MB in the beginning and 45.0MB in the end (delta: 22.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1374]: Unsupported Syntax Unsupported function: pthread_attr_init 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