./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc-dec.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f 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/popl20-min-max-inc-dec.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc-dec.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-04 16:27:57,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-04 16:27:57,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-04 16:27:57,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-04 16:27:57,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-04 16:27:57,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-04 16:27:57,192 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-04 16:27:57,192 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-04 16:27:57,193 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-04 16:27:57,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-04 16:27:57,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-04 16:27:57,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-04 16:27:57,197 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-04 16:27:57,198 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-04 16:27:57,198 INFO L153 SettingsManager]: * Use SBE=true [2024-06-04 16:27:57,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-04 16:27:57,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-04 16:27:57,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-04 16:27:57,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-04 16:27:57,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-04 16:27:57,200 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-04 16:27:57,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-04 16:27:57,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-04 16:27:57,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-04 16:27:57,201 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-04 16:27:57,201 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-04 16:27:57,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-04 16:27:57,201 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-04 16:27:57,202 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-04 16:27:57,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-04 16:27:57,203 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-04 16:27:57,203 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-04 16:27:57,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:27:57,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-04 16:27:57,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-04 16:27:57,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-04 16:27:57,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-04 16:27:57,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-04 16:27:57,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-04 16:27:57,204 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-04 16:27:57,204 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-04 16:27:57,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-04 16:27:57,205 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-04 16:27:57,205 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-04 16:27:57,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-04 16:27:57,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-04 16:27:57,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-04 16:27:57,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-04 16:27:57,395 INFO L274 PluginConnector]: CDTParser initialized [2024-06-04 16:27:57,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-06-04 16:27:58,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-04 16:27:58,612 INFO L384 CDTParser]: Found 1 translation units. [2024-06-04 16:27:58,612 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-06-04 16:27:58,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bd2aa26b/89d8a4aedfb64555a90307299c55e9c4/FLAGd98ebf9d1 [2024-06-04 16:27:58,740 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bd2aa26b/89d8a4aedfb64555a90307299c55e9c4 [2024-06-04 16:27:58,742 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-04 16:27:58,743 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-04 16:27:58,745 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc-dec.wvr.yml/witness.yml [2024-06-04 16:27:58,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-04 16:27:58,824 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-04 16:27:58,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-04 16:27:58,825 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-04 16:27:58,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-04 16:27:58,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:27:58" (1/2) ... [2024-06-04 16:27:58,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37aa3912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:27:58, skipping insertion in model container [2024-06-04 16:27:58,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.06 04:27:58" (1/2) ... [2024-06-04 16:27:58,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58890de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.06 04:27:58, skipping insertion in model container [2024-06-04 16:27:58,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:27:58" (2/2) ... [2024-06-04 16:27:58,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37aa3912 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:58, skipping insertion in model container [2024-06-04 16:27:58,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:27:58" (2/2) ... [2024-06-04 16:27:58,834 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-04 16:27:58,851 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-04 16:27:58,851 INFO L97 edCorrectnessWitness]: Location invariant before [L125-L125] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-04 16:27:58,852 INFO L97 edCorrectnessWitness]: Location invariant before [L126-L126] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-04 16:27:58,852 INFO L97 edCorrectnessWitness]: Location invariant before [L123-L123] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-04 16:27:58,852 INFO L97 edCorrectnessWitness]: Location invariant before [L127-L127] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-04 16:27:58,852 INFO L97 edCorrectnessWitness]: Location invariant before [L124-L124] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-04 16:27:58,852 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-04 16:27:58,852 INFO L106 edCorrectnessWitness]: ghost_update [L122-L122] multithreaded = 1; [2024-06-04 16:27:58,872 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-04 16:27:59,083 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:27:59,090 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-04 16:27:59,189 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-04 16:27:59,211 INFO L206 MainTranslator]: Completed translation [2024-06-04 16:27:59,212 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59 WrapperNode [2024-06-04 16:27:59,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-04 16:27:59,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-04 16:27:59,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-04 16:27:59,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-04 16:27:59,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,264 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 160 [2024-06-04 16:27:59,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-04 16:27:59,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-04 16:27:59,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-04 16:27:59,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-04 16:27:59,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,307 INFO L175 MemorySlicer]: Split 15 memory accesses to 2 slices as follows [2, 13]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-06-04 16:27:59,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-04 16:27:59,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-04 16:27:59,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-04 16:27:59,368 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-04 16:27:59,369 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (1/1) ... [2024-06-04 16:27:59,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-04 16:27:59,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 16:27:59,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-04 16:27:59,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-04 16:27:59,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-04 16:27:59,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-04 16:27:59,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-04 16:27:59,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-04 16:27:59,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-04 16:27:59,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-04 16:27:59,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-04 16:27:59,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-04 16:27:59,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-04 16:27:59,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-04 16:27:59,451 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-04 16:27:59,451 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-04 16:27:59,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-04 16:27:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-04 16:27:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-04 16:27:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-06-04 16:27:59,452 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-06-04 16:27:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-04 16:27:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-04 16:27:59,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-04 16:27:59,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-04 16:27:59,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-04 16:27:59,454 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-04 16:27:59,534 INFO L244 CfgBuilder]: Building ICFG [2024-06-04 16:27:59,536 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-04 16:28:00,151 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-04 16:28:00,152 INFO L293 CfgBuilder]: Performing block encoding [2024-06-04 16:28:00,323 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-04 16:28:00,324 INFO L320 CfgBuilder]: Removed 5 assume(true) statements. [2024-06-04 16:28:00,324 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:28:00 BoogieIcfgContainer [2024-06-04 16:28:00,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-04 16:28:00,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-04 16:28:00,327 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-04 16:28:00,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-04 16:28:00,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.06 04:27:58" (1/4) ... [2024-06-04 16:28:00,331 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc92156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.06 04:28:00, skipping insertion in model container [2024-06-04 16:28:00,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 04.06 04:27:58" (2/4) ... [2024-06-04 16:28:00,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc92156 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:28:00, skipping insertion in model container [2024-06-04 16:28:00,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 04.06 04:27:59" (3/4) ... [2024-06-04 16:28:00,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc92156 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 04.06 04:28:00, skipping insertion in model container [2024-06-04 16:28:00,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.06 04:28:00" (4/4) ... [2024-06-04 16:28:00,333 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2024-06-04 16:28:00,347 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-04 16:28:00,348 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-06-04 16:28:00,348 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-04 16:28:00,494 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-06-04 16:28:00,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 65 transitions, 165 flow [2024-06-04 16:28:00,552 INFO L124 PetriNetUnfolderBase]: 5/60 cut-off events. [2024-06-04 16:28:00,552 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-04 16:28:00,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 60 events. 5/60 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 108 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2024-06-04 16:28:00,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 65 transitions, 165 flow [2024-06-04 16:28:00,557 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 57 transitions, 138 flow [2024-06-04 16:28:00,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-04 16:28:00,568 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@94ac510, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-04 16:28:00,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-06-04 16:28:00,571 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-04 16:28:00,571 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-06-04 16:28:00,571 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:28:00,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:28:00,572 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:28:00,573 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-04 16:28:00,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:28:00,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1033602106, now seen corresponding path program 1 times [2024-06-04 16:28:00,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:28:00,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169737255] [2024-06-04 16:28:00,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:28:00,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:28:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:28:00,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:28:00,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:28:00,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169737255] [2024-06-04 16:28:00,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169737255] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-04 16:28:00,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-04 16:28:00,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-04 16:28:00,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226672805] [2024-06-04 16:28:00,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-04 16:28:00,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-04 16:28:00,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:28:00,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-04 16:28:00,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-04 16:28:00,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 65 [2024-06-04 16:28:00,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 57 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 16:28:00,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:28:00,863 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 65 [2024-06-04 16:28:00,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:28:02,724 INFO L124 PetriNetUnfolderBase]: 14210/20517 cut-off events. [2024-06-04 16:28:02,724 INFO L125 PetriNetUnfolderBase]: For 670/670 co-relation queries the response was YES. [2024-06-04 16:28:02,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39386 conditions, 20517 events. 14210/20517 cut-off events. For 670/670 co-relation queries the response was YES. Maximal size of possible extension queue 976. Compared 135342 event pairs, 10031 based on Foata normal form. 0/19161 useless extension candidates. Maximal degree in co-relation 37395. Up to 17600 conditions per place. [2024-06-04 16:28:02,853 INFO L140 encePairwiseOnDemand]: 62/65 looper letters, 35 selfloop transitions, 2 changer transitions 3/58 dead transitions. [2024-06-04 16:28:02,854 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 58 transitions, 220 flow [2024-06-04 16:28:02,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-04 16:28:02,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-04 16:28:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-06-04 16:28:02,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2024-06-04 16:28:02,865 INFO L175 Difference]: Start difference. First operand has 68 places, 57 transitions, 138 flow. Second operand 3 states and 110 transitions. [2024-06-04 16:28:02,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 58 transitions, 220 flow [2024-06-04 16:28:02,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 206 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-06-04 16:28:02,934 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 127 flow [2024-06-04 16:28:02,935 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2024-06-04 16:28:02,938 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, -5 predicate places. [2024-06-04 16:28:02,938 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 127 flow [2024-06-04 16:28:02,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 16:28:02,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-04 16:28:02,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-04 16:28:02,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-04 16:28:02,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-04 16:28:02,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-04 16:28:02,940 INFO L85 PathProgramCache]: Analyzing trace with hash 867865565, now seen corresponding path program 1 times [2024-06-04 16:28:02,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-04 16:28:02,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628547639] [2024-06-04 16:28:02,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:28:02,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-04 16:28:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:28:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:28:03,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-04 16:28:03,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628547639] [2024-06-04 16:28:03,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628547639] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-04 16:28:03,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792189853] [2024-06-04 16:28:03,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-04 16:28:03,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-04 16:28:03,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-04 16:28:03,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-04 16:28:03,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-04 16:28:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-04 16:28:03,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 14 conjunts are in the unsatisfiable core [2024-06-04 16:28:03,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-04 16:28:03,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:28:03,527 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-04 16:28:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-04 16:28:03,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792189853] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-04 16:28:03,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-04 16:28:03,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2024-06-04 16:28:03,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658880860] [2024-06-04 16:28:03,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-04 16:28:03,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-04 16:28:03,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-04 16:28:03,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-04 16:28:03,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-06-04 16:28:04,078 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 65 [2024-06-04 16:28:04,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 127 flow. Second operand has 10 states, 10 states have (on average 16.9) internal successors, (169), 10 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 16:28:04,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-04 16:28:04,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 65 [2024-06-04 16:28:04,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-04 16:28:06,129 INFO L124 PetriNetUnfolderBase]: 22957/30708 cut-off events. [2024-06-04 16:28:06,130 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-04 16:28:06,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60507 conditions, 30708 events. 22957/30708 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1020. Compared 173094 event pairs, 4768 based on Foata normal form. 1680/32149 useless extension candidates. Maximal degree in co-relation 60496. Up to 27027 conditions per place. [2024-06-04 16:28:06,199 INFO L140 encePairwiseOnDemand]: 54/65 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2024-06-04 16:28:06,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 81 transitions, 332 flow [2024-06-04 16:28:06,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-04 16:28:06,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-04 16:28:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions. [2024-06-04 16:28:06,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43846153846153846 [2024-06-04 16:28:06,225 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 127 flow. Second operand 6 states and 171 transitions. [2024-06-04 16:28:06,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 81 transitions, 332 flow [2024-06-04 16:28:06,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 81 transitions, 328 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-04 16:28:06,227 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2024-06-04 16:28:06,228 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2024-06-04 16:28:06,228 INFO L281 CegarLoopForPetriNet]: 68 programPoint places, -9 predicate places. [2024-06-04 16:28:06,228 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2024-06-04 16:28:06,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.9) internal successors, (169), 10 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-04 16:28:06,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 10 remaining) [2024-06-04 16:28:06,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 10 remaining) [2024-06-04 16:28:06,231 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 10 remaining) [2024-06-04 16:28:06,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 10 remaining) [2024-06-04 16:28:06,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 10 remaining) [2024-06-04 16:28:06,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-06-04 16:28:06,232 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-06-04 16:28:06,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2024-06-04 16:28:06,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2024-06-04 16:28:06,234 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-06-04 16:28:06,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-04 16:28:06,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-04 16:28:06,448 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-04 16:28:06,451 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-04 16:28:06,452 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-04 16:28:06,455 INFO L507 ceAbstractionStarter]: Automizer considered 5 witness invariants [2024-06-04 16:28:06,456 INFO L508 ceAbstractionStarter]: WitnessConsidered=5 [2024-06-04 16:28:06,456 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.06 04:28:06 BasicIcfg [2024-06-04 16:28:06,457 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-04 16:28:06,457 INFO L158 Benchmark]: Toolchain (without parser) took 7632.98ms. Allocated memory was 234.9MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 168.9MB in the beginning and 1.2GB in the end (delta: -984.9MB). Peak memory consumption was 589.6MB. Max. memory is 16.1GB. [2024-06-04 16:28:06,457 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 16:28:06,458 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 234.9MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-04 16:28:06,458 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.17ms. Allocated memory is still 234.9MB. Free memory was 168.9MB in the beginning and 190.8MB in the end (delta: -21.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-04 16:28:06,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.93ms. Allocated memory is still 234.9MB. Free memory was 190.8MB in the beginning and 185.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-04 16:28:06,459 INFO L158 Benchmark]: Boogie Preprocessor took 101.91ms. Allocated memory is still 234.9MB. Free memory was 185.6MB in the beginning and 182.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-04 16:28:06,459 INFO L158 Benchmark]: RCFGBuilder took 956.68ms. Allocated memory is still 234.9MB. Free memory was 182.4MB in the beginning and 102.7MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-06-04 16:28:06,459 INFO L158 Benchmark]: TraceAbstraction took 6129.91ms. Allocated memory was 234.9MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 101.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 524.2MB. Max. memory is 16.1GB. [2024-06-04 16:28:06,461 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 234.9MB. Free memory is still 172.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.17ms. Allocated memory is still 234.9MB. Free memory was 168.9MB in the beginning and 190.8MB in the end (delta: -21.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.93ms. Allocated memory is still 234.9MB. Free memory was 190.8MB in the beginning and 185.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.91ms. Allocated memory is still 234.9MB. Free memory was 185.6MB in the beginning and 182.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 956.68ms. Allocated memory is still 234.9MB. Free memory was 182.4MB in the beginning and 102.7MB in the end (delta: 79.7MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6129.91ms. Allocated memory was 234.9MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 101.7MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 524.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 124]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 125]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 126]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 127]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 96 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 478 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 12 mSDtfsCounter, 478 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 SizeOfPredicates, 1 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-04 16:28:06,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE