./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-lamport.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/parallel-lamport.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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/parallel-lamport.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-lamport.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-76401ed-m [2024-06-20 18:12:16,833 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:12:16,914 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:12:16,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:12:16,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:12:16,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:12:16,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:12:16,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:12:16,953 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:12:16,957 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:12:16,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:12:16,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:12:16,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:12:16,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:12:16,960 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:12:16,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:12:16,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:12:16,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:12:16,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:12:16,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:12:16,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:12:16,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:12:16,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:12:16,963 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:12:16,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:12:16,964 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:12:16,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:12:16,964 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:12:16,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:12:16,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:12:16,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:12:16,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:12:16,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:12:16,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:12:16,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:12:16,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:12:16,967 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:12:16,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:12:16,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:12:16,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:12:16,968 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:12:16,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:12:16,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:12:16,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:12:17,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:12:17,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:12:17,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:12:17,272 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:12:17,273 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:12:17,274 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-lamport.wvr.yml/witness.yml [2024-06-20 18:12:17,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:12:17,404 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:12:17,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2024-06-20 18:12:18,511 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:12:18,715 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:12:18,715 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2024-06-20 18:12:18,722 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/421ce0a4b/3efc01d0ee2d4299b8b41381ad4e919c/FLAG8686188ba [2024-06-20 18:12:18,732 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/421ce0a4b/3efc01d0ee2d4299b8b41381ad4e919c [2024-06-20 18:12:18,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:12:18,734 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:12:18,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:12:18,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:12:18,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:12:18,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:12:17" (1/2) ... [2024-06-20 18:12:18,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0a9935 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:12:18, skipping insertion in model container [2024-06-20 18:12:18,742 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:12:17" (1/2) ... [2024-06-20 18:12:18,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12cbeadc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:12:18, skipping insertion in model container [2024-06-20 18:12:18,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:12:18" (2/2) ... [2024-06-20 18:12:18,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0a9935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:18, skipping insertion in model container [2024-06-20 18:12:18,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:12:18" (2/2) ... [2024-06-20 18:12:18,744 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:12:18,762 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:12:18,763 INFO L97 edCorrectnessWitness]: Location invariant before [L156-L156] (((! multithreaded || -2147483647 <= n1) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((2147483647LL + (long long )e1) + (long long )n1 >= 0LL && (2147483647LL + (long long )e1) + (long long )n2 >= 0LL) && (2147483647LL + (long long )e2) + (long long )n1 >= 0LL) && (2147483647LL + (long long )e2) + (long long )n2 >= 0LL) && (2147483648LL + (long long )e1) + (long long )tmp1 >= 0LL) && (2147483648LL + (long long )e1) + (long long )tmp2 >= 0LL) && (2147483648LL + (long long )e1) + (long long )n >= 0LL) && (2147483648LL + (long long )e2) + (long long )tmp1 >= 0LL) && (2147483648LL + (long long )e2) + (long long )tmp2 >= 0LL) && (2147483648LL + (long long )e2) + (long long )n >= 0LL) && (4294967294LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) + (long long )tmp1 >= 0LL) && (4294967295LL + (long long )n1) + (long long )tmp2 >= 0LL) && (4294967295LL + (long long )n2) + (long long )tmp1 >= 0LL) && (4294967295LL + (long long )n2) + (long long )tmp2 >= 0LL) && (4294967295LL + (long long )n) + (long long )n1 >= 0LL) && (4294967295LL + (long long )n) + (long long )n2 >= 0LL) && (4294967296LL + (long long )tmp1) + (long long )tmp2 >= 0LL) && (4294967296LL + (long long )n) + (long long )tmp1 >= 0LL) && (4294967296LL + (long long )n) + (long long )tmp2 >= 0LL) && (1LL - (long long )e1) + (long long )e2 >= 0LL) && (2147483648LL - (long long )e1) + (long long )n1 >= 0LL) && (2147483648LL - (long long )e1) + (long long )n2 >= 0LL) && (2147483648LL - (long long )e2) + (long long )n1 >= 0LL) && (2147483648LL - (long long )e2) + (long long )n2 >= 0LL) && (2147483649LL - (long long )e1) + (long long )tmp1 >= 0LL) && (2147483649LL - (long long )e1) + (long long )tmp2 >= 0LL) && (2147483649LL - (long long )e1) + (long long )n >= 0LL) && (2147483649LL - (long long )e2) + (long long )tmp1 >= 0LL) && (2147483649LL - (long long )e2) + (long long )tmp2 >= 0LL) && (2147483649LL - (long long )e2) + (long long )n >= 0LL) && (4294967294LL - (long long )n) + (long long )n1 >= 0LL) && (4294967294LL - (long long )n) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n) + (long long )tmp1 >= 0LL) && (4294967295LL - (long long )n) + (long long )tmp2 >= 0LL) && (long long )e1 + (long long )e2 >= 0LL) && (1LL + (long long )e1) - (long long )e2 >= 0LL) && (2147483647LL + (long long )e1) - (long long )n >= 0LL) && (2147483647LL + (long long )e2) - (long long )n >= 0LL) && (2LL - (long long )e1) - (long long )e2 >= 0LL) && (2147483648LL - (long long )e1) - (long long )n >= 0LL) && (2147483648LL - (long long )e2) - (long long )n >= 0LL))) && (! multithreaded || -2147483647 <= n2)) && (! multithreaded || (-2147483647 <= n1 && -2147483647 <= n2)) [2024-06-20 18:12:18,763 INFO L97 edCorrectnessWitness]: Location invariant before [L154-L154] (((! multithreaded || -2147483647 <= n1) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((2147483647LL + (long long )e1) + (long long )n1 >= 0LL && (2147483647LL + (long long )e1) + (long long )n2 >= 0LL) && (2147483647LL + (long long )e2) + (long long )n1 >= 0LL) && (2147483647LL + (long long )e2) + (long long )n2 >= 0LL) && (2147483648LL + (long long )e1) + (long long )tmp1 >= 0LL) && (2147483648LL + (long long )e1) + (long long )tmp2 >= 0LL) && (2147483648LL + (long long )e1) + (long long )n >= 0LL) && (2147483648LL + (long long )e2) + (long long )tmp1 >= 0LL) && (2147483648LL + (long long )e2) + (long long )tmp2 >= 0LL) && (2147483648LL + (long long )e2) + (long long )n >= 0LL) && (4294967294LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) + (long long )tmp1 >= 0LL) && (4294967295LL + (long long )n1) + (long long )tmp2 >= 0LL) && (4294967295LL + (long long )n2) + (long long )tmp1 >= 0LL) && (4294967295LL + (long long )n2) + (long long )tmp2 >= 0LL) && (4294967295LL + (long long )n) + (long long )n1 >= 0LL) && (4294967295LL + (long long )n) + (long long )n2 >= 0LL) && (4294967296LL + (long long )tmp1) + (long long )tmp2 >= 0LL) && (4294967296LL + (long long )n) + (long long )tmp1 >= 0LL) && (4294967296LL + (long long )n) + (long long )tmp2 >= 0LL) && (1LL - (long long )e1) + (long long )e2 >= 0LL) && (2147483648LL - (long long )e1) + (long long )n1 >= 0LL) && (2147483648LL - (long long )e1) + (long long )n2 >= 0LL) && (2147483648LL - (long long )e2) + (long long )n1 >= 0LL) && (2147483648LL - (long long )e2) + (long long )n2 >= 0LL) && (2147483649LL - (long long )e1) + (long long )tmp1 >= 0LL) && (2147483649LL - (long long )e1) + (long long )tmp2 >= 0LL) && (2147483649LL - (long long )e1) + (long long )n >= 0LL) && (2147483649LL - (long long )e2) + (long long )tmp1 >= 0LL) && (2147483649LL - (long long )e2) + (long long )tmp2 >= 0LL) && (2147483649LL - (long long )e2) + (long long )n >= 0LL) && (4294967294LL - (long long )n) + (long long )n1 >= 0LL) && (4294967294LL - (long long )n) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n) + (long long )tmp1 >= 0LL) && (4294967295LL - (long long )n) + (long long )tmp2 >= 0LL) && (long long )e1 + (long long )e2 >= 0LL) && (1LL + (long long )e1) - (long long )e2 >= 0LL) && (2147483647LL + (long long )e1) - (long long )n >= 0LL) && (2147483647LL + (long long )e2) - (long long )n >= 0LL) && (2LL - (long long )e1) - (long long )e2 >= 0LL) && (2147483648LL - (long long )e1) - (long long )n >= 0LL) && (2147483648LL - (long long )e2) - (long long )n >= 0LL))) && (! multithreaded || -2147483647 <= n2)) && (! multithreaded || (-2147483647 <= n1 && -2147483647 <= n2)) [2024-06-20 18:12:18,763 INFO L97 edCorrectnessWitness]: Location invariant before [L155-L155] (((! multithreaded || -2147483647 <= n1) && (! multithreaded || ((((((((((((((((((((((((((((((((((((((((((2147483647LL + (long long )e1) + (long long )n1 >= 0LL && (2147483647LL + (long long )e1) + (long long )n2 >= 0LL) && (2147483647LL + (long long )e2) + (long long )n1 >= 0LL) && (2147483647LL + (long long )e2) + (long long )n2 >= 0LL) && (2147483648LL + (long long )e1) + (long long )tmp1 >= 0LL) && (2147483648LL + (long long )e1) + (long long )tmp2 >= 0LL) && (2147483648LL + (long long )e1) + (long long )n >= 0LL) && (2147483648LL + (long long )e2) + (long long )tmp1 >= 0LL) && (2147483648LL + (long long )e2) + (long long )tmp2 >= 0LL) && (2147483648LL + (long long )e2) + (long long )n >= 0LL) && (4294967294LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL + (long long )n1) + (long long )tmp1 >= 0LL) && (4294967295LL + (long long )n1) + (long long )tmp2 >= 0LL) && (4294967295LL + (long long )n2) + (long long )tmp1 >= 0LL) && (4294967295LL + (long long )n2) + (long long )tmp2 >= 0LL) && (4294967295LL + (long long )n) + (long long )n1 >= 0LL) && (4294967295LL + (long long )n) + (long long )n2 >= 0LL) && (4294967296LL + (long long )tmp1) + (long long )tmp2 >= 0LL) && (4294967296LL + (long long )n) + (long long )tmp1 >= 0LL) && (4294967296LL + (long long )n) + (long long )tmp2 >= 0LL) && (1LL - (long long )e1) + (long long )e2 >= 0LL) && (2147483648LL - (long long )e1) + (long long )n1 >= 0LL) && (2147483648LL - (long long )e1) + (long long )n2 >= 0LL) && (2147483648LL - (long long )e2) + (long long )n1 >= 0LL) && (2147483648LL - (long long )e2) + (long long )n2 >= 0LL) && (2147483649LL - (long long )e1) + (long long )tmp1 >= 0LL) && (2147483649LL - (long long )e1) + (long long )tmp2 >= 0LL) && (2147483649LL - (long long )e1) + (long long )n >= 0LL) && (2147483649LL - (long long )e2) + (long long )tmp1 >= 0LL) && (2147483649LL - (long long )e2) + (long long )tmp2 >= 0LL) && (2147483649LL - (long long )e2) + (long long )n >= 0LL) && (4294967294LL - (long long )n) + (long long )n1 >= 0LL) && (4294967294LL - (long long )n) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n) + (long long )tmp1 >= 0LL) && (4294967295LL - (long long )n) + (long long )tmp2 >= 0LL) && (long long )e1 + (long long )e2 >= 0LL) && (1LL + (long long )e1) - (long long )e2 >= 0LL) && (2147483647LL + (long long )e1) - (long long )n >= 0LL) && (2147483647LL + (long long )e2) - (long long )n >= 0LL) && (2LL - (long long )e1) - (long long )e2 >= 0LL) && (2147483648LL - (long long )e1) - (long long )n >= 0LL) && (2147483648LL - (long long )e2) - (long long )n >= 0LL))) && (! multithreaded || -2147483647 <= n2)) && (! multithreaded || (-2147483647 <= n1 && -2147483647 <= n2)) [2024-06-20 18:12:18,764 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:12:18,764 INFO L106 edCorrectnessWitness]: ghost_update [L153-L153] multithreaded = 1; [2024-06-20 18:12:18,784 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:12:18,995 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:12:19,005 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:12:19,155 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:12:19,206 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:12:19,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19 WrapperNode [2024-06-20 18:12:19,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:12:19,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:12:19,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:12:19,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:12:19,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,305 INFO L138 Inliner]: procedures = 24, calls = 75, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 236 [2024-06-20 18:12:19,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:12:19,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:12:19,307 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:12:19,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:12:19,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,322 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,349 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-06-20 18:12:19,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,377 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,400 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:12:19,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:12:19,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:12:19,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:12:19,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (1/1) ... [2024-06-20 18:12:19,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:12:19,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:12:19,453 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) [2024-06-20 18:12:19,476 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 [2024-06-20 18:12:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:12:19,499 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-20 18:12:19,499 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-20 18:12:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-20 18:12:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-20 18:12:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-20 18:12:19,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-20 18:12:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:12:19,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:12:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-20 18:12:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-20 18:12:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-20 18:12:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-20 18:12:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-20 18:12:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:12:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:12:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-20 18:12:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-20 18:12:19,506 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:12:19,629 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:12:19,631 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:12:20,066 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:12:20,067 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:12:20,332 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:12:20,332 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-06-20 18:12:20,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:12:20 BoogieIcfgContainer [2024-06-20 18:12:20,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:12:20,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:12:20,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:12:20,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:12:20,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:12:17" (1/4) ... [2024-06-20 18:12:20,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c7f976 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:12:20, skipping insertion in model container [2024-06-20 18:12:20,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:12:18" (2/4) ... [2024-06-20 18:12:20,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c7f976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:12:20, skipping insertion in model container [2024-06-20 18:12:20,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:12:19" (3/4) ... [2024-06-20 18:12:20,341 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c7f976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:12:20, skipping insertion in model container [2024-06-20 18:12:20,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:12:20" (4/4) ... [2024-06-20 18:12:20,343 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2024-06-20 18:12:20,359 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:12:20,359 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-20 18:12:20,360 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:12:20,417 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-20 18:12:20,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 52 transitions, 125 flow [2024-06-20 18:12:20,494 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2024-06-20 18:12:20,494 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-20 18:12:20,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 1/49 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2024-06-20 18:12:20,497 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 52 transitions, 125 flow [2024-06-20 18:12:20,501 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 44 transitions, 97 flow [2024-06-20 18:12:20,515 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:12:20,530 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;@11fb9346, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:12:20,530 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-20 18:12:20,538 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:12:20,538 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-06-20 18:12:20,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:12:20,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:12:20,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-06-20 18:12:20,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:12:20,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:12:20,544 INFO L85 PathProgramCache]: Analyzing trace with hash -535080293, now seen corresponding path program 1 times [2024-06-20 18:12:20,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:12:20,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443169558] [2024-06-20 18:12:20,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:12:20,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:12:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:12:20,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:12:20,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:12:20,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443169558] [2024-06-20 18:12:20,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443169558] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:12:20,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:12:20,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 18:12:20,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316920656] [2024-06-20 18:12:20,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:12:20,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:12:20,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:12:20,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:12:20,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:12:20,998 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 52 [2024-06-20 18:12:21,000 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 44 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-06-20 18:12:21,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:12:21,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 52 [2024-06-20 18:12:21,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:12:21,317 INFO L124 PetriNetUnfolderBase]: 905/1606 cut-off events. [2024-06-20 18:12:21,317 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-06-20 18:12:21,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3091 conditions, 1606 events. 905/1606 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 9348 event pairs, 904 based on Foata normal form. 0/1560 useless extension candidates. Maximal degree in co-relation 3073. Up to 1394 conditions per place. [2024-06-20 18:12:21,333 INFO L140 encePairwiseOnDemand]: 49/52 looper letters, 24 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2024-06-20 18:12:21,334 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 45 transitions, 151 flow [2024-06-20 18:12:21,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:12:21,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:12:21,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-06-20 18:12:21,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-06-20 18:12:21,347 INFO L175 Difference]: Start difference. First operand has 53 places, 44 transitions, 97 flow. Second operand 3 states and 96 transitions. [2024-06-20 18:12:21,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 45 transitions, 151 flow [2024-06-20 18:12:21,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 45 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-20 18:12:21,356 INFO L231 Difference]: Finished difference. Result has 53 places, 45 transitions, 106 flow [2024-06-20 18:12:21,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=53, PETRI_TRANSITIONS=45} [2024-06-20 18:12:21,360 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places. [2024-06-20 18:12:21,361 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 45 transitions, 106 flow [2024-06-20 18:12:21,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-06-20 18:12:21,361 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:12:21,361 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:12:21,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:12:21,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 3 more)] === [2024-06-20 18:12:21,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:12:21,363 INFO L85 PathProgramCache]: Analyzing trace with hash 541106811, now seen corresponding path program 1 times [2024-06-20 18:12:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:12:21,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145382040] [2024-06-20 18:12:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:12:21,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:12:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:12:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:12:22,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:12:22,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145382040] [2024-06-20 18:12:22,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145382040] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-20 18:12:22,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091478795] [2024-06-20 18:12:22,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:12:22,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-20 18:12:22,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:12:22,085 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) [2024-06-20 18:12:22,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-20 18:12:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:12:22,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 19 conjunts are in the unsatisfiable core [2024-06-20 18:12:22,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-20 18:12:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:12:22,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-20 18:12:22,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:12:22,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091478795] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-20 18:12:22,918 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-20 18:12:22,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-06-20 18:12:22,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836618107] [2024-06-20 18:12:22,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-20 18:12:22,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-20 18:12:22,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:12:22,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-20 18:12:22,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-06-20 18:12:23,039 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 52 [2024-06-20 18:12:23,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 45 transitions, 106 flow. Second operand has 11 states, 11 states have (on average 15.636363636363637) internal successors, (172), 11 states have internal predecessors, (172), 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) [2024-06-20 18:12:23,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:12:23,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 52 [2024-06-20 18:12:23,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:12:23,718 INFO L124 PetriNetUnfolderBase]: 2174/3734 cut-off events. [2024-06-20 18:12:23,718 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:12:23,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7208 conditions, 3734 events. 2174/3734 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 22089 event pairs, 736 based on Foata normal form. 410/4115 useless extension candidates. Maximal degree in co-relation 7197. Up to 3252 conditions per place. [2024-06-20 18:12:23,726 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2024-06-20 18:12:23,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 238 flow [2024-06-20 18:12:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:12:23,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:12:23,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 138 transitions. [2024-06-20 18:12:23,736 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4423076923076923 [2024-06-20 18:12:23,736 INFO L175 Difference]: Start difference. First operand has 53 places, 45 transitions, 106 flow. Second operand 6 states and 138 transitions. [2024-06-20 18:12:23,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 238 flow [2024-06-20 18:12:23,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 58 transitions, 234 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-20 18:12:23,738 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2024-06-20 18:12:23,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2024-06-20 18:12:23,739 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2024-06-20 18:12:23,739 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2024-06-20 18:12:23,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.636363636363637) internal successors, (172), 11 states have internal predecessors, (172), 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) [2024-06-20 18:12:23,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-20 18:12:23,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-20 18:12:23,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-20 18:12:23,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-20 18:12:23,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-20 18:12:23,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-20 18:12:23,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-20 18:12:23,957 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 [2024-06-20 18:12:23,957 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-20 18:12:23,961 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:12:23,961 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:12:23,965 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-20 18:12:23,965 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-20 18:12:23,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:12:23 BasicIcfg [2024-06-20 18:12:23,966 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:12:23,967 INFO L158 Benchmark]: Toolchain (without parser) took 5232.29ms. Allocated memory was 165.7MB in the beginning and 243.3MB in the end (delta: 77.6MB). Free memory was 91.3MB in the beginning and 187.2MB in the end (delta: -95.9MB). Peak memory consumption was 118.9MB. Max. memory is 16.1GB. [2024-06-20 18:12:23,967 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 113.2MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:12:23,967 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:12:23,967 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.85ms. Allocated memory is still 165.7MB. Free memory was 91.1MB in the beginning and 136.7MB in the end (delta: -45.6MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2024-06-20 18:12:23,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.27ms. Allocated memory is still 165.7MB. Free memory was 136.7MB in the beginning and 132.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 18:12:23,968 INFO L158 Benchmark]: Boogie Preprocessor took 94.17ms. Allocated memory is still 165.7MB. Free memory was 132.9MB in the beginning and 129.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-20 18:12:23,968 INFO L158 Benchmark]: RCFGBuilder took 932.16ms. Allocated memory is still 165.7MB. Free memory was 129.3MB in the beginning and 123.9MB in the end (delta: 5.4MB). Peak memory consumption was 84.8MB. Max. memory is 16.1GB. [2024-06-20 18:12:23,969 INFO L158 Benchmark]: TraceAbstraction took 3630.50ms. Allocated memory was 165.7MB in the beginning and 243.3MB in the end (delta: 77.6MB). Free memory was 123.0MB in the beginning and 187.2MB in the end (delta: -64.2MB). Peak memory consumption was 149.9MB. Max. memory is 16.1GB. [2024-06-20 18:12:23,971 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 0.18ms. Allocated memory is still 113.2MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.85ms. Allocated memory is still 165.7MB. Free memory was 91.1MB in the beginning and 136.7MB in the end (delta: -45.6MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.27ms. Allocated memory is still 165.7MB. Free memory was 136.7MB in the beginning and 132.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.17ms. Allocated memory is still 165.7MB. Free memory was 132.9MB in the beginning and 129.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 932.16ms. Allocated memory is still 165.7MB. Free memory was 129.3MB in the beginning and 123.9MB in the end (delta: 5.4MB). Peak memory consumption was 84.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3630.50ms. Allocated memory was 165.7MB in the beginning and 243.3MB in the end (delta: 77.6MB). Free memory was 123.0MB in the beginning and 187.2MB in the end (delta: -64.2MB). Peak memory consumption was 149.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 155]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 156]: 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 7 procedures, 87 locations, 6 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: 3.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 125 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 332 IncrementalHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 16 mSDtfsCounter, 332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=1, 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, 1.6s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 788 SizeOfPredicates, 2 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 19 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-20 18:12:24,002 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