./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 bcb38a6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/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-bcb38a6-m [2024-06-03 21:00:05,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 21:00:05,942 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 21:00:05,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 21:00:05,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 21:00:05,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 21:00:05,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 21:00:05,973 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 21:00:05,974 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 21:00:05,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 21:00:05,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 21:00:05,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 21:00:05,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 21:00:05,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 21:00:05,979 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 21:00:05,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 21:00:05,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 21:00:05,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 21:00:05,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 21:00:05,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 21:00:05,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 21:00:05,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 21:00:05,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 21:00:05,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 21:00:05,988 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 21:00:05,988 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 21:00:05,988 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 21:00:05,988 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 21:00:05,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 21:00:05,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 21:00:05,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 21:00:05,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 21:00:05,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:00:05,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 21:00:05,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 21:00:05,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 21:00:05,991 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 21:00:05,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 21:00:05,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 21:00:05,991 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 21:00:05,992 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 21:00:05,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 21:00:05,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 21:00:05,992 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 21:00:06,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 21:00:06,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 21:00:06,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 21:00:06,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 21:00:06,264 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 21:00:06,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2024-06-03 21:00:07,408 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 21:00:07,560 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 21:00:07,561 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2024-06-03 21:00:07,570 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e9ee33dc/d16ea5d5b1654bacb51558148ea09086/FLAG4370394e2 [2024-06-03 21:00:07,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e9ee33dc/d16ea5d5b1654bacb51558148ea09086 [2024-06-03 21:00:07,586 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 21:00:07,587 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 21:00:07,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/parallel-lamport.wvr.yml/witness.yml [2024-06-03 21:00:07,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 21:00:07,675 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 21:00:07,676 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 21:00:07,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 21:00:07,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 21:00:07,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:00:07" (1/2) ... [2024-06-03 21:00:07,681 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32bf8890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:00:07, skipping insertion in model container [2024-06-03 21:00:07,681 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:00:07" (1/2) ... [2024-06-03 21:00:07,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2be1d55f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:00:07, skipping insertion in model container [2024-06-03 21:00:07,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:07" (2/2) ... [2024-06-03 21:00:07,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32bf8890 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:07, skipping insertion in model container [2024-06-03 21:00:07,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:07" (2/2) ... [2024-06-03 21:00:07,685 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 21:00:07,706 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 21:00:07,707 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)) [2024-06-03 21:00:07,707 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)) [2024-06-03 21:00:07,707 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)) [2024-06-03 21:00:07,707 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 21:00:07,708 INFO L106 edCorrectnessWitness]: ghost_update [L153-L153] multithreaded = 1; [2024-06-03 21:00:07,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 21:00:07,903 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:00:07,911 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 21:00:08,010 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:00:08,022 INFO L206 MainTranslator]: Completed translation [2024-06-03 21:00:08,031 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08 WrapperNode [2024-06-03 21:00:08,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 21:00:08,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 21:00:08,032 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 21:00:08,032 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 21:00:08,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,106 INFO L138 Inliner]: procedures = 24, calls = 75, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 233 [2024-06-03 21:00:08,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 21:00:08,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 21:00:08,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 21:00:08,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 21:00:08,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,131 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,218 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]. [2024-06-03 21:00:08,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 21:00:08,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 21:00:08,276 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 21:00:08,277 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 21:00:08,277 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (1/1) ... [2024-06-03 21:00:08,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:00:08,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:00:08,302 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) [2024-06-03 21:00:08,328 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 [2024-06-03 21:00:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 21:00:08,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-03 21:00:08,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-03 21:00:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-03 21:00:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-03 21:00:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-03 21:00:08,351 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-03 21:00:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 21:00:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 21:00:08,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-03 21:00:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-03 21:00:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 21:00:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 21:00:08,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-03 21:00:08,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 21:00:08,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 21:00:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-03 21:00:08,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-03 21:00:08,356 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-03 21:00:08,463 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 21:00:08,464 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 21:00:08,865 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 21:00:08,865 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 21:00:09,109 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 21:00:09,114 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-06-03 21:00:09,115 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:00:09 BoogieIcfgContainer [2024-06-03 21:00:09,115 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 21:00:09,117 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 21:00:09,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 21:00:09,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 21:00:09,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 09:00:07" (1/4) ... [2024-06-03 21:00:09,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71276291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:00:09, skipping insertion in model container [2024-06-03 21:00:09,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:00:07" (2/4) ... [2024-06-03 21:00:09,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71276291 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:00:09, skipping insertion in model container [2024-06-03 21:00:09,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:00:08" (3/4) ... [2024-06-03 21:00:09,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71276291 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:00:09, skipping insertion in model container [2024-06-03 21:00:09,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:00:09" (4/4) ... [2024-06-03 21:00:09,123 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2024-06-03 21:00:09,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 21:00:09,137 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-03 21:00:09,137 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 21:00:09,181 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-03 21:00:09,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 50 transitions, 121 flow [2024-06-03 21:00:09,242 INFO L124 PetriNetUnfolderBase]: 1/47 cut-off events. [2024-06-03 21:00:09,243 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-03 21:00:09,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 47 events. 1/47 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-06-03 21:00:09,245 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 50 transitions, 121 flow [2024-06-03 21:00:09,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 42 transitions, 93 flow [2024-06-03 21:00:09,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 21:00:09,258 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;@46c4cfb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 21:00:09,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-03 21:00:09,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 21:00:09,262 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-06-03 21:00:09,262 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:00:09,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:09,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:09,263 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)] === [2024-06-03 21:00:09,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:09,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1249256800, now seen corresponding path program 1 times [2024-06-03 21:00:09,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:09,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031766690] [2024-06-03 21:00:09,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:09,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:00:09,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:09,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031766690] [2024-06-03 21:00:09,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031766690] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:00:09,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:00:09,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-03 21:00:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180685408] [2024-06-03 21:00:09,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:00:09,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 21:00:09,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:09,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 21:00:09,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 21:00:09,615 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 50 [2024-06-03 21:00:09,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 42 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-06-03 21:00:09,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:09,617 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 50 [2024-06-03 21:00:09,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:09,836 INFO L124 PetriNetUnfolderBase]: 905/1592 cut-off events. [2024-06-03 21:00:09,838 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-06-03 21:00:09,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3079 conditions, 1592 events. 905/1592 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 8999 event pairs, 904 based on Foata normal form. 0/1551 useless extension candidates. Maximal degree in co-relation 3058. Up to 1396 conditions per place. [2024-06-03 21:00:09,850 INFO L140 encePairwiseOnDemand]: 47/50 looper letters, 26 selfloop transitions, 2 changer transitions 0/43 dead transitions. [2024-06-03 21:00:09,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 151 flow [2024-06-03 21:00:09,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:00:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:00:09,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-06-03 21:00:09,860 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5733333333333334 [2024-06-03 21:00:09,861 INFO L175 Difference]: Start difference. First operand has 51 places, 42 transitions, 93 flow. Second operand 3 states and 86 transitions. [2024-06-03 21:00:09,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 151 flow [2024-06-03 21:00:09,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 148 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-03 21:00:09,868 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 102 flow [2024-06-03 21:00:09,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2024-06-03 21:00:09,872 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 0 predicate places. [2024-06-03 21:00:09,872 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 102 flow [2024-06-03 21:00:09,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2024-06-03 21:00:09,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:00:09,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:00:09,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 21:00:09,873 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)] === [2024-06-03 21:00:09,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:00:09,875 INFO L85 PathProgramCache]: Analyzing trace with hash -649948026, now seen corresponding path program 1 times [2024-06-03 21:00:09,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:00:09,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24569115] [2024-06-03 21:00:09,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:09,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:00:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:10,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:00:10,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:00:10,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24569115] [2024-06-03 21:00:10,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24569115] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-03 21:00:10,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104434765] [2024-06-03 21:00:10,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:00:10,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-03 21:00:10,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:00:10,473 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) [2024-06-03 21:00:10,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-03 21:00:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:00:10,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 19 conjunts are in the unsatisfiable core [2024-06-03 21:00:10,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-03 21:00:10,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:00:10,692 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-03 21:00:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-03 21:00:11,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104434765] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-03 21:00:11,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-03 21:00:11,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 9 [2024-06-03 21:00:11,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567148716] [2024-06-03 21:00:11,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-03 21:00:11,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-06-03 21:00:11,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:00:11,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-06-03 21:00:11,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-06-03 21:00:11,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 50 [2024-06-03 21:00:11,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 102 flow. Second operand has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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) [2024-06-03 21:00:11,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:00:11,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 50 [2024-06-03 21:00:11,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:00:11,733 INFO L124 PetriNetUnfolderBase]: 2174/3730 cut-off events. [2024-06-03 21:00:11,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:00:11,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7208 conditions, 3730 events. 2174/3730 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 21374 event pairs, 736 based on Foata normal form. 410/4112 useless extension candidates. Maximal degree in co-relation 7197. Up to 3254 conditions per place. [2024-06-03 21:00:11,739 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2024-06-03 21:00:11,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 58 transitions, 246 flow [2024-06-03 21:00:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:00:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:00:11,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2024-06-03 21:00:11,740 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3933333333333333 [2024-06-03 21:00:11,741 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 102 flow. Second operand 6 states and 118 transitions. [2024-06-03 21:00:11,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 58 transitions, 246 flow [2024-06-03 21:00:11,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 242 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-03 21:00:11,742 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-06-03 21:00:11,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=52, PETRI_TRANSITIONS=0} [2024-06-03 21:00:11,743 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2024-06-03 21:00:11,743 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-06-03 21:00:11,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.181818181818182) internal successors, (134), 11 states have internal predecessors, (134), 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) [2024-06-03 21:00:11,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-03 21:00:11,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-03 21:00:11,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-03 21:00:11,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-03 21:00:11,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-03 21:00:11,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-03 21:00:11,760 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-03 21:00:11,958 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 [2024-06-03 21:00:11,958 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-03 21:00:11,961 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 21:00:11,961 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 21:00:11,965 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-03 21:00:11,965 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-03 21:00:11,966 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 09:00:11 BasicIcfg [2024-06-03 21:00:11,966 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 21:00:11,967 INFO L158 Benchmark]: Toolchain (without parser) took 4292.21ms. Allocated memory was 117.4MB in the beginning and 205.5MB in the end (delta: 88.1MB). Free memory was 75.0MB in the beginning and 123.6MB in the end (delta: -48.6MB). Peak memory consumption was 124.3MB. Max. memory is 16.1GB. [2024-06-03 21:00:11,967 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.9MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:00:11,967 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:00:11,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.46ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 55.8MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-06-03 21:00:11,968 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.03ms. Allocated memory is still 117.4MB. Free memory was 55.8MB in the beginning and 51.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-03 21:00:11,968 INFO L158 Benchmark]: Boogie Preprocessor took 166.93ms. Allocated memory is still 117.4MB. Free memory was 51.6MB in the beginning and 86.2MB in the end (delta: -34.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-06-03 21:00:11,969 INFO L158 Benchmark]: RCFGBuilder took 838.83ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 86.2MB in the beginning and 92.3MB in the end (delta: -6.0MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2024-06-03 21:00:11,969 INFO L158 Benchmark]: TraceAbstraction took 2849.83ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 91.2MB in the beginning and 123.6MB in the end (delta: -32.4MB). Peak memory consumption was 102.2MB. Max. memory is 16.1GB. [2024-06-03 21:00:11,971 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.9MB in the end (delta: 70.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.46ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 55.8MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.03ms. Allocated memory is still 117.4MB. Free memory was 55.8MB in the beginning and 51.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 166.93ms. Allocated memory is still 117.4MB. Free memory was 51.6MB in the beginning and 86.2MB in the end (delta: -34.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 838.83ms. Allocated memory was 117.4MB in the beginning and 155.2MB in the end (delta: 37.7MB). Free memory was 86.2MB in the beginning and 92.3MB in the end (delta: -6.0MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2849.83ms. Allocated memory was 155.2MB in the beginning and 205.5MB in the end (delta: 50.3MB). Free memory was 91.2MB in the beginning and 123.6MB in the end (delta: -32.4MB). Peak memory consumption was 102.2MB. 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, 82 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: 2.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 341 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 4 mSDtfsCounter, 341 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102occurred 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, 1.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 948 SizeOfPredicates, 2 NumberOfNonLiveVariables, 107 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! [2024-06-03 21:00:11,995 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