./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-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-dec.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 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-dec.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-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-cde23df-m [2024-06-14 14:20:11,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:20:11,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:20:11,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:20:11,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:20:12,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:20:12,024 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:20:12,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:20:12,025 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:20:12,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:20:12,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:20:12,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:20:12,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:20:12,031 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:20:12,031 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:20:12,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:20:12,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:20:12,031 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:20:12,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:20:12,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:20:12,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:20:12,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:20:12,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:20:12,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:20:12,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:20:12,034 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:20:12,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:20:12,035 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:20:12,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:20:12,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:20:12,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:20:12,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:20:12,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:20:12,037 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:20:12,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:20:12,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:20:12,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:20:12,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:20:12,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:20:12,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:20:12,038 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:20:12,039 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:20:12,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:20:12,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:20:12,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:20:12,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:20:12,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:20:12,269 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:20:12,269 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:20:12,270 INFO L431 ainManager$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-dec.wvr.yml/witness.yml [2024-06-14 14:20:12,391 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:20:12,392 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:20:12,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2024-06-14 14:20:13,288 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:20:13,496 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:20:13,496 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-dec.wvr.c [2024-06-14 14:20:13,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/714f8c365/1b532d05014c45a8918b28c83b3f606c/FLAG1c8222920 [2024-06-14 14:20:13,518 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/714f8c365/1b532d05014c45a8918b28c83b3f606c [2024-06-14 14:20:13,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:20:13,519 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:20:13,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:20:13,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:20:13,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:20:13,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:12" (1/2) ... [2024-06-14 14:20:13,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c19fb55 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:20:13, skipping insertion in model container [2024-06-14 14:20:13,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:12" (1/2) ... [2024-06-14 14:20:13,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6deefd26 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:20:13, skipping insertion in model container [2024-06-14 14:20:13,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:20:13" (2/2) ... [2024-06-14 14:20:13,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c19fb55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13, skipping insertion in model container [2024-06-14 14:20:13,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:20:13" (2/2) ... [2024-06-14 14:20:13,530 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:20:13,544 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:20:13,545 INFO L97 edCorrectnessWitness]: Location invariant before [L111-L111] ! 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) [2024-06-14 14:20:13,545 INFO L97 edCorrectnessWitness]: Location invariant before [L113-L113] ! 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) [2024-06-14 14:20:13,546 INFO L97 edCorrectnessWitness]: Location invariant before [L114-L114] ! 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) [2024-06-14 14:20:13,546 INFO L97 edCorrectnessWitness]: Location invariant before [L112-L112] ! 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) [2024-06-14 14:20:13,546 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:20:13,546 INFO L106 edCorrectnessWitness]: ghost_update [L110-L110] multithreaded = 1; [2024-06-14 14:20:13,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:20:13,750 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:20:13,758 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:20:13,853 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:20:13,865 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:20:13,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13 WrapperNode [2024-06-14 14:20:13,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:20:13,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:20:13,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:20:13,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:20:13,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,920 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 126 [2024-06-14 14:20:13,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:20:13,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:20:13,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:20:13,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:20:13,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,952 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-14 14:20:13,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:20:13,983 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:20:13,983 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:20:13,983 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:20:13,984 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (1/1) ... [2024-06-14 14:20:13,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:20:13,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:14,011 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) [2024-06-14 14:20:14,030 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 [2024-06-14 14:20:14,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:20:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:20:14,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:20:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:20:14,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:20:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:20:14,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:20:14,046 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-14 14:20:14,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-14 14:20:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:20:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:20:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 14:20:14,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 14:20:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:20:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:20:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 14:20:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:20:14,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:20:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 14:20:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 14:20:14,051 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:20:14,159 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:20:14,161 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:20:14,528 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:20:14,528 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:20:14,688 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:20:14,688 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-06-14 14:20:14,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:20:14 BoogieIcfgContainer [2024-06-14 14:20:14,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:20:14,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:20:14,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:20:14,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:20:14,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:12" (1/4) ... [2024-06-14 14:20:14,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fc24a9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:20:14, skipping insertion in model container [2024-06-14 14:20:14,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:20:13" (2/4) ... [2024-06-14 14:20:14,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fc24a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:20:14, skipping insertion in model container [2024-06-14 14:20:14,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:13" (3/4) ... [2024-06-14 14:20:14,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56fc24a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:20:14, skipping insertion in model container [2024-06-14 14:20:14,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:20:14" (4/4) ... [2024-06-14 14:20:14,697 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-dec.wvr.c [2024-06-14 14:20:14,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:20:14,711 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-14 14:20:14,712 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:20:14,759 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-14 14:20:14,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions, 136 flow [2024-06-14 14:20:14,820 INFO L124 PetriNetUnfolderBase]: 4/50 cut-off events. [2024-06-14 14:20:14,821 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-14 14:20:14,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 50 events. 4/50 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 89 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-06-14 14:20:14,824 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 54 transitions, 136 flow [2024-06-14 14:20:14,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 47 transitions, 112 flow [2024-06-14 14:20:14,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:20:14,848 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;@74bff565, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:20:14,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-14 14:20:14,852 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:20:14,852 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-06-14 14:20:14,852 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:20:14,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:14,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:14,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:20:14,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:14,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1674423307, now seen corresponding path program 1 times [2024-06-14 14:20:14,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:14,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619461934] [2024-06-14 14:20:14,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:14,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:15,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:15,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619461934] [2024-06-14 14:20:15,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619461934] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:20:15,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:20:15,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-14 14:20:15,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974089479] [2024-06-14 14:20:15,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:20:15,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:20:15,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:15,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:20:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-14 14:20:15,195 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2024-06-14 14:20:15,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 47 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-06-14 14:20:15,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:15,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2024-06-14 14:20:15,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:15,703 INFO L124 PetriNetUnfolderBase]: 2686/4281 cut-off events. [2024-06-14 14:20:15,704 INFO L125 PetriNetUnfolderBase]: For 178/178 co-relation queries the response was YES. [2024-06-14 14:20:15,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8121 conditions, 4281 events. 2686/4281 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 26750 event pairs, 1861 based on Foata normal form. 0/3958 useless extension candidates. Maximal degree in co-relation 7707. Up to 3524 conditions per place. [2024-06-14 14:20:15,731 INFO L140 encePairwiseOnDemand]: 51/54 looper letters, 28 selfloop transitions, 2 changer transitions 2/48 dead transitions. [2024-06-14 14:20:15,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 48 transitions, 178 flow [2024-06-14 14:20:15,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:20:15,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:20:15,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-06-14 14:20:15,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5740740740740741 [2024-06-14 14:20:15,744 INFO L175 Difference]: Start difference. First operand has 56 places, 47 transitions, 112 flow. Second operand 3 states and 93 transitions. [2024-06-14 14:20:15,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 48 transitions, 178 flow [2024-06-14 14:20:15,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 48 transitions, 168 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-06-14 14:20:15,756 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 108 flow [2024-06-14 14:20:15,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-06-14 14:20:15,761 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-06-14 14:20:15,762 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 108 flow [2024-06-14 14:20:15,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2024-06-14 14:20:15,762 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:15,763 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:15,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:20:15,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:20:15,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:15,764 INFO L85 PathProgramCache]: Analyzing trace with hash -197861397, now seen corresponding path program 1 times [2024-06-14 14:20:15,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:15,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73353324] [2024-06-14 14:20:15,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:15,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:16,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:16,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:16,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73353324] [2024-06-14 14:20:16,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73353324] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:20:16,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149457272] [2024-06-14 14:20:16,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:16,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:16,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:16,274 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) [2024-06-14 14:20:16,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 14:20:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:16,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 9 conjunts are in the unsatisfiable core [2024-06-14 14:20:16,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:20:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-06-14 14:20:16,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-06-14 14:20:16,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149457272] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:20:16,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-06-14 14:20:16,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2024-06-14 14:20:16,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375178957] [2024-06-14 14:20:16,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:20:16,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-14 14:20:16,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:16,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-14 14:20:16,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-06-14 14:20:16,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 54 [2024-06-14 14:20:16,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-06-14 14:20:16,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:16,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 54 [2024-06-14 14:20:16,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:17,067 INFO L124 PetriNetUnfolderBase]: 6186/8613 cut-off events. [2024-06-14 14:20:17,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:20:17,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16943 conditions, 8613 events. 6186/8613 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 45643 event pairs, 1795 based on Foata normal form. 16/8350 useless extension candidates. Maximal degree in co-relation 16932. Up to 7762 conditions per place. [2024-06-14 14:20:17,107 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 52 selfloop transitions, 4 changer transitions 0/65 dead transitions. [2024-06-14 14:20:17,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 65 transitions, 263 flow [2024-06-14 14:20:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-14 14:20:17,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-14 14:20:17,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-06-14 14:20:17,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2024-06-14 14:20:17,109 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 108 flow. Second operand 3 states and 98 transitions. [2024-06-14 14:20:17,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 65 transitions, 263 flow [2024-06-14 14:20:17,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 65 transitions, 259 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-14 14:20:17,111 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 136 flow [2024-06-14 14:20:17,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2024-06-14 14:20:17,112 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-06-14 14:20:17,112 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 136 flow [2024-06-14 14:20:17,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-06-14 14:20:17,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:17,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:17,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-14 14:20:17,323 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 [2024-06-14 14:20:17,324 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-14 14:20:17,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:17,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1764571622, now seen corresponding path program 1 times [2024-06-14 14:20:17,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:17,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498391730] [2024-06-14 14:20:17,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:17,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:17,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:17,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:17,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498391730] [2024-06-14 14:20:17,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498391730] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:20:17,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975781759] [2024-06-14 14:20:17,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:17,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:17,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:17,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 14:20:17,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-06-14 14:20:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:17,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2024-06-14 14:20:17,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:20:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:17,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 14:20:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:18,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975781759] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 14:20:18,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-14 14:20:18,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-06-14 14:20:18,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205342408] [2024-06-14 14:20:18,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-14 14:20:18,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-06-14 14:20:18,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:18,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-06-14 14:20:18,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-06-14 14:20:18,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 54 [2024-06-14 14:20:18,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 136 flow. Second operand has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 12 states have internal predecessors, (179), 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) [2024-06-14 14:20:18,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:18,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 54 [2024-06-14 14:20:18,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:18,850 INFO L124 PetriNetUnfolderBase]: 4984/7201 cut-off events. [2024-06-14 14:20:18,850 INFO L125 PetriNetUnfolderBase]: For 1129/1169 co-relation queries the response was YES. [2024-06-14 14:20:18,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15370 conditions, 7201 events. 4984/7201 cut-off events. For 1129/1169 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 39182 event pairs, 1027 based on Foata normal form. 619/7786 useless extension candidates. Maximal degree in co-relation 12281. Up to 5771 conditions per place. [2024-06-14 14:20:18,868 INFO L140 encePairwiseOnDemand]: 44/54 looper letters, 0 selfloop transitions, 0 changer transitions 89/89 dead transitions. [2024-06-14 14:20:18,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 396 flow [2024-06-14 14:20:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-14 14:20:18,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-14 14:20:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 176 transitions. [2024-06-14 14:20:18,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4656084656084656 [2024-06-14 14:20:18,873 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 136 flow. Second operand 7 states and 176 transitions. [2024-06-14 14:20:18,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 396 flow [2024-06-14 14:20:18,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-14 14:20:18,875 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-06-14 14:20:18,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-06-14 14:20:18,876 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2024-06-14 14:20:18,876 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-06-14 14:20:18,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 12 states have internal predecessors, (179), 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) [2024-06-14 14:20:18,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-14 14:20:18,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-14 14:20:18,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-14 14:20:18,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-14 14:20:18,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-14 14:20:18,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-14 14:20:18,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-14 14:20:18,880 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-14 14:20:18,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-06-14 14:20:19,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-06-14 14:20:19,086 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-14 14:20:19,088 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:20:19,088 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:20:19,091 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-14 14:20:19,092 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-14 14:20:19,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:20:19 BasicIcfg [2024-06-14 14:20:19,092 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:20:19,093 INFO L158 Benchmark]: Toolchain (without parser) took 5573.65ms. Allocated memory was 130.0MB in the beginning and 352.3MB in the end (delta: 222.3MB). Free memory was 101.3MB in the beginning and 150.1MB in the end (delta: -48.8MB). Peak memory consumption was 269.2MB. Max. memory is 16.1GB. [2024-06-14 14:20:19,093 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:19,093 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory was 102.9MB in the beginning and 102.8MB in the end (delta: 104.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:19,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.60ms. Allocated memory is still 130.0MB. Free memory was 101.3MB in the beginning and 83.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-14 14:20:19,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.98ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 79.1MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-14 14:20:19,094 INFO L158 Benchmark]: Boogie Preprocessor took 61.45ms. Allocated memory is still 130.0MB. Free memory was 79.1MB in the beginning and 75.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:20:19,095 INFO L158 Benchmark]: RCFGBuilder took 705.77ms. Allocated memory is still 130.0MB. Free memory was 75.5MB in the beginning and 64.5MB in the end (delta: 11.0MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-06-14 14:20:19,095 INFO L158 Benchmark]: TraceAbstraction took 4401.86ms. Allocated memory was 130.0MB in the beginning and 352.3MB in the end (delta: 222.3MB). Free memory was 63.9MB in the beginning and 150.1MB in the end (delta: -86.2MB). Peak memory consumption was 230.6MB. Max. memory is 16.1GB. [2024-06-14 14:20:19,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 130.0MB. Free memory was 86.6MB in the beginning and 86.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory was 102.9MB in the beginning and 102.8MB in the end (delta: 104.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.60ms. Allocated memory is still 130.0MB. Free memory was 101.3MB in the beginning and 83.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.98ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 79.1MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.45ms. Allocated memory is still 130.0MB. Free memory was 79.1MB in the beginning and 75.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 705.77ms. Allocated memory is still 130.0MB. Free memory was 75.5MB in the beginning and 64.5MB in the end (delta: 11.0MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4401.86ms. Allocated memory was 130.0MB in the beginning and 352.3MB in the end (delta: 222.3MB). Free memory was 63.9MB in the beginning and 150.1MB in the end (delta: -86.2MB). Peak memory consumption was 230.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 111]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 112]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 113]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 114]: 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 9 procedures, 80 locations, 8 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: 4.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 174 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 7 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=2, InterpolantAutomatonStates: 13, 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, 1.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 923 SizeOfPredicates, 1 NumberOfNonLiveVariables, 194 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/5 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-14 14:20:19,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE