./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-queue-add-3-nl.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cde23df1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-queue-add-3-nl.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-cde23df-m [2024-06-14 14:20:52,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-14 14:20:52,696 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-14 14:20:52,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-14 14:20:52,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-14 14:20:52,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-14 14:20:52,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-14 14:20:52,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-14 14:20:52,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-14 14:20:52,728 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-14 14:20:52,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-14 14:20:52,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-14 14:20:52,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-14 14:20:52,730 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-14 14:20:52,730 INFO L153 SettingsManager]: * Use SBE=true [2024-06-14 14:20:52,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-14 14:20:52,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-14 14:20:52,731 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-14 14:20:52,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-14 14:20:52,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-14 14:20:52,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-14 14:20:52,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-14 14:20:52,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-14 14:20:52,732 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-14 14:20:52,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-14 14:20:52,733 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-14 14:20:52,733 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-14 14:20:52,733 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-14 14:20:52,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-14 14:20:52,734 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-14 14:20:52,735 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-14 14:20:52,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-14 14:20:52,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:20:52,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-14 14:20:52,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-14 14:20:52,735 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-14 14:20:52,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-14 14:20:52,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-14 14:20:52,736 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-14 14:20:52,736 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-14 14:20:52,736 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-14 14:20:52,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-14 14:20:52,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-14 14:20:52,737 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-14 14:20:52,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-14 14:20:52,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-14 14:20:52,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-14 14:20:52,969 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-14 14:20:52,974 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-14 14:20:52,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-more-queue-add-3-nl.wvr.yml/witness.yml [2024-06-14 14:20:53,071 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-14 14:20:53,071 INFO L274 PluginConnector]: CDTParser initialized [2024-06-14 14:20:53,072 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2024-06-14 14:20:54,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-14 14:20:54,254 INFO L384 CDTParser]: Found 1 translation units. [2024-06-14 14:20:54,254 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-queue-add-3-nl.wvr.c [2024-06-14 14:20:54,261 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/857b3bc3c/5c3909d1f3a248d89be1f2cf245fa887/FLAG372839485 [2024-06-14 14:20:54,271 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/857b3bc3c/5c3909d1f3a248d89be1f2cf245fa887 [2024-06-14 14:20:54,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-14 14:20:54,272 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-14 14:20:54,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-14 14:20:54,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-14 14:20:54,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-14 14:20:54,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:53" (1/2) ... [2024-06-14 14:20:54,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9e8aae and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:20:54, skipping insertion in model container [2024-06-14 14:20:54,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:53" (1/2) ... [2024-06-14 14:20:54,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@bd9de2b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 14.06 02:20:54, skipping insertion in model container [2024-06-14 14:20:54,280 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:20:54" (2/2) ... [2024-06-14 14:20:54,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9e8aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54, skipping insertion in model container [2024-06-14 14:20:54,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.06 02:20:54" (2/2) ... [2024-06-14 14:20:54,280 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-14 14:20:54,291 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-14 14:20:54,292 INFO L97 edCorrectnessWitness]: Location invariant before [L130-L130] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )C) + (long long )q1_front >= 0LL && (2147483648LL + (long long )C) + (long long )n1 >= 0LL) && (2147483648LL + (long long )C) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )C) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )C) + (long long )n2 >= 0LL) && (2147483648LL + (long long )C) + (long long )N >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n2) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (6442450943LL - (long long )C) + (long long )q1_front >= 0LL) && (6442450943LL - (long long )C) + (long long )n1 >= 0LL) && (6442450943LL - (long long )C) + (long long )q2_front >= 0LL) && (6442450943LL - (long long )C) + (long long )q2_back >= 0LL) && (6442450943LL - (long long )C) + (long long )n2 >= 0LL) && (6442450943LL - (long long )C) + (long long )N >= 0LL) && (2147483647LL + (long long )C) - (long long )n1 >= 0LL) && (2147483647LL + (long long )C) - (long long )n2 >= 0LL) && (2147483647LL + (long long )C) - (long long )N >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) && (6442450942LL - (long long )C) - (long long )n1 >= 0LL) && (6442450942LL - (long long )C) - (long long )n2 >= 0LL) && (6442450942LL - (long long )C) - (long long )N >= 0LL) [2024-06-14 14:20:54,292 INFO L97 edCorrectnessWitness]: Location invariant before [L128-L128] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )C) + (long long )q1_front >= 0LL && (2147483648LL + (long long )C) + (long long )n1 >= 0LL) && (2147483648LL + (long long )C) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )C) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )C) + (long long )n2 >= 0LL) && (2147483648LL + (long long )C) + (long long )N >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n2) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (6442450943LL - (long long )C) + (long long )q1_front >= 0LL) && (6442450943LL - (long long )C) + (long long )n1 >= 0LL) && (6442450943LL - (long long )C) + (long long )q2_front >= 0LL) && (6442450943LL - (long long )C) + (long long )q2_back >= 0LL) && (6442450943LL - (long long )C) + (long long )n2 >= 0LL) && (6442450943LL - (long long )C) + (long long )N >= 0LL) && (2147483647LL + (long long )C) - (long long )n1 >= 0LL) && (2147483647LL + (long long )C) - (long long )n2 >= 0LL) && (2147483647LL + (long long )C) - (long long )N >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) && (6442450942LL - (long long )C) - (long long )n1 >= 0LL) && (6442450942LL - (long long )C) - (long long )n2 >= 0LL) && (6442450942LL - (long long )C) - (long long )N >= 0LL) [2024-06-14 14:20:54,292 INFO L97 edCorrectnessWitness]: Location invariant before [L129-L129] ! multithreaded || (((((((((((((((((((((((((((((((((((((((((((((((((((2147483648LL + (long long )C) + (long long )q1_front >= 0LL && (2147483648LL + (long long )C) + (long long )n1 >= 0LL) && (2147483648LL + (long long )C) + (long long )q2_front >= 0LL) && (2147483648LL + (long long )C) + (long long )q2_back >= 0LL) && (2147483648LL + (long long )C) + (long long )n2 >= 0LL) && (2147483648LL + (long long )C) + (long long )N >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )q1_front) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n1) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )n1) + (long long )n2 >= 0LL) && (4294967296LL + (long long )q2_back) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )n2) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )q1_front >= 0LL) && (4294967296LL + (long long )N) + (long long )n1 >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_front >= 0LL) && (4294967296LL + (long long )N) + (long long )q2_back >= 0LL) && (4294967296LL + (long long )N) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n1) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n1) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )n1) + (long long )n2 >= 0LL) && (4294967295LL - (long long )n2) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )n2) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )q1_front >= 0LL) && (4294967295LL - (long long )N) + (long long )n1 >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_front >= 0LL) && (4294967295LL - (long long )N) + (long long )q2_back >= 0LL) && (4294967295LL - (long long )N) + (long long )n2 >= 0LL) && (6442450943LL - (long long )C) + (long long )q1_front >= 0LL) && (6442450943LL - (long long )C) + (long long )n1 >= 0LL) && (6442450943LL - (long long )C) + (long long )q2_front >= 0LL) && (6442450943LL - (long long )C) + (long long )q2_back >= 0LL) && (6442450943LL - (long long )C) + (long long )n2 >= 0LL) && (6442450943LL - (long long )C) + (long long )N >= 0LL) && (2147483647LL + (long long )C) - (long long )n1 >= 0LL) && (2147483647LL + (long long )C) - (long long )n2 >= 0LL) && (2147483647LL + (long long )C) - (long long )N >= 0LL) && (4294967295LL + (long long )n1) - (long long )n2 >= 0LL) && (4294967295LL + (long long )N) - (long long )n1 >= 0LL) && (4294967295LL + (long long )N) - (long long )n2 >= 0LL) && (4294967294LL - (long long )n1) - (long long )n2 >= 0LL) && (4294967294LL - (long long )N) - (long long )n1 >= 0LL) && (4294967294LL - (long long )N) - (long long )n2 >= 0LL) && (6442450942LL - (long long )C) - (long long )n1 >= 0LL) && (6442450942LL - (long long )C) - (long long )n2 >= 0LL) && (6442450942LL - (long long )C) - (long long )N >= 0LL) [2024-06-14 14:20:54,292 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-14 14:20:54,292 INFO L106 edCorrectnessWitness]: ghost_update [L127-L127] multithreaded = 1; [2024-06-14 14:20:54,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-14 14:20:54,452 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:20:54,460 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-14 14:20:54,609 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-14 14:20:54,621 INFO L206 MainTranslator]: Completed translation [2024-06-14 14:20:54,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54 WrapperNode [2024-06-14 14:20:54,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-14 14:20:54,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-14 14:20:54,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-14 14:20:54,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-14 14:20:54,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,693 INFO L138 Inliner]: procedures = 25, calls = 41, calls flagged for inlining = 17, calls inlined = 19, statements flattened = 260 [2024-06-14 14:20:54,693 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-14 14:20:54,694 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-14 14:20:54,694 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-14 14:20:54,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-14 14:20:54,702 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,733 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-06-14 14:20:54,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,740 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,765 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-14 14:20:54,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-14 14:20:54,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-14 14:20:54,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-14 14:20:54,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (1/1) ... [2024-06-14 14:20:54,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-14 14:20:54,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:54,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-06-14 14:20:54,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-06-14 14:20:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-14 14:20:54,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-14 14:20:54,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-14 14:20:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-14 14:20:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-14 14:20:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-14 14:20:54,846 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-14 14:20:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-14 14:20:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-14 14:20:54,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-14 14:20:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-14 14:20:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-14 14:20:54,847 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-14 14:20:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-14 14:20:54,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-14 14:20:54,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-14 14:20:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-14 14:20:54,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-14 14:20:54,852 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-14 14:20:54,960 INFO L244 CfgBuilder]: Building ICFG [2024-06-14 14:20:54,961 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-14 14:20:55,394 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-14 14:20:55,394 INFO L293 CfgBuilder]: Performing block encoding [2024-06-14 14:20:55,581 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-14 14:20:55,581 INFO L320 CfgBuilder]: Removed 5 assume(true) statements. [2024-06-14 14:20:55,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:20:55 BoogieIcfgContainer [2024-06-14 14:20:55,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-14 14:20:55,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-14 14:20:55,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-14 14:20:55,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-14 14:20:55,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 14.06 02:20:53" (1/4) ... [2024-06-14 14:20:55,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4699bc50 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 14.06 02:20:55, skipping insertion in model container [2024-06-14 14:20:55,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.06 02:20:54" (2/4) ... [2024-06-14 14:20:55,588 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4699bc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:20:55, skipping insertion in model container [2024-06-14 14:20:55,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.06 02:20:54" (3/4) ... [2024-06-14 14:20:55,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4699bc50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 02:20:55, skipping insertion in model container [2024-06-14 14:20:55,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 02:20:55" (4/4) ... [2024-06-14 14:20:55,591 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-queue-add-3-nl.wvr.c [2024-06-14 14:20:55,604 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-14 14:20:55,604 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-06-14 14:20:55,604 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-14 14:20:55,649 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-06-14 14:20:55,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 50 transitions, 121 flow [2024-06-14 14:20:55,762 INFO L124 PetriNetUnfolderBase]: 7/47 cut-off events. [2024-06-14 14:20:55,763 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-06-14 14:20:55,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 47 events. 7/47 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2024-06-14 14:20:55,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 50 transitions, 121 flow [2024-06-14 14:20:55,770 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 45 transitions, 105 flow [2024-06-14 14:20:55,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-14 14:20:55,790 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;@58f3b230, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-14 14:20:55,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-06-14 14:20:55,794 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-14 14:20:55,795 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-06-14 14:20:55,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-14 14:20:55,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:55,795 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:55,796 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)] === [2024-06-14 14:20:55,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:55,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1849669042, now seen corresponding path program 1 times [2024-06-14 14:20:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:55,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226152180] [2024-06-14 14:20:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:55,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:56,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:56,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:56,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226152180] [2024-06-14 14:20:56,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226152180] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-14 14:20:56,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-14 14:20:56,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-14 14:20:56,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191438334] [2024-06-14 14:20:56,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-14 14:20:56,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-14 14:20:56,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:56,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-14 14:20:56,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-06-14 14:20:56,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-06-14 14:20:56,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 45 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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) [2024-06-14 14:20:56,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:56,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-06-14 14:20:56,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:57,408 INFO L124 PetriNetUnfolderBase]: 1999/3225 cut-off events. [2024-06-14 14:20:57,408 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-06-14 14:20:57,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6131 conditions, 3225 events. 1999/3225 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 17156 event pairs, 1678 based on Foata normal form. 436/3401 useless extension candidates. Maximal degree in co-relation 4975. Up to 2334 conditions per place. [2024-06-14 14:20:57,427 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 32 selfloop transitions, 3 changer transitions 22/65 dead transitions. [2024-06-14 14:20:57,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 65 transitions, 271 flow [2024-06-14 14:20:57,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-06-14 14:20:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-06-14 14:20:57,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 121 transitions. [2024-06-14 14:20:57,436 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.484 [2024-06-14 14:20:57,437 INFO L175 Difference]: Start difference. First operand has 48 places, 45 transitions, 105 flow. Second operand 5 states and 121 transitions. [2024-06-14 14:20:57,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 65 transitions, 271 flow [2024-06-14 14:20:57,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 65 transitions, 255 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-06-14 14:20:57,444 INFO L231 Difference]: Finished difference. Result has 49 places, 43 transitions, 113 flow [2024-06-14 14:20:57,445 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=43} [2024-06-14 14:20:57,447 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-06-14 14:20:57,448 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 43 transitions, 113 flow [2024-06-14 14:20:57,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 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) [2024-06-14 14:20:57,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-14 14:20:57,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-14 14:20:57,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-14 14:20:57,449 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)] === [2024-06-14 14:20:57,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-14 14:20:57,449 INFO L85 PathProgramCache]: Analyzing trace with hash 57022529, now seen corresponding path program 1 times [2024-06-14 14:20:57,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-14 14:20:57,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479984917] [2024-06-14 14:20:57,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:57,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-14 14:20:57,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:58,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:58,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-14 14:20:58,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479984917] [2024-06-14 14:20:58,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479984917] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-14 14:20:58,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784953364] [2024-06-14 14:20:58,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-14 14:20:58,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:58,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-14 14:20:58,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-06-14 14:20:58,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-06-14 14:20:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-14 14:20:58,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 19 conjunts are in the unsatisfiable core [2024-06-14 14:20:58,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-14 14:20:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:58,382 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-14 14:20:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-14 14:20:58,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784953364] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-14 14:20:58,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-14 14:20:58,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2024-06-14 14:20:58,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549181064] [2024-06-14 14:20:58,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-14 14:20:58,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-06-14 14:20:58,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-14 14:20:58,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-06-14 14:20:58,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2024-06-14 14:20:58,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2024-06-14 14:20:58,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 43 transitions, 113 flow. Second operand has 14 states, 14 states have (on average 12.928571428571429) internal successors, (181), 14 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:20:58,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-14 14:20:58,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2024-06-14 14:20:58,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-14 14:20:59,347 INFO L124 PetriNetUnfolderBase]: 2340/3818 cut-off events. [2024-06-14 14:20:59,348 INFO L125 PetriNetUnfolderBase]: For 650/650 co-relation queries the response was YES. [2024-06-14 14:20:59,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7423 conditions, 3818 events. 2340/3818 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 21585 event pairs, 1906 based on Foata normal form. 444/3955 useless extension candidates. Maximal degree in co-relation 7406. Up to 1557 conditions per place. [2024-06-14 14:20:59,357 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 0 selfloop transitions, 0 changer transitions 68/68 dead transitions. [2024-06-14 14:20:59,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 68 transitions, 290 flow [2024-06-14 14:20:59,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-14 14:20:59,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-14 14:20:59,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2024-06-14 14:20:59,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44 [2024-06-14 14:20:59,359 INFO L175 Difference]: Start difference. First operand has 49 places, 43 transitions, 113 flow. Second operand 6 states and 132 transitions. [2024-06-14 14:20:59,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 68 transitions, 290 flow [2024-06-14 14:20:59,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 68 transitions, 284 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-06-14 14:20:59,360 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2024-06-14 14:20:59,361 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=42, 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=47, PETRI_TRANSITIONS=0} [2024-06-14 14:20:59,361 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -1 predicate places. [2024-06-14 14:20:59,361 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2024-06-14 14:20:59,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.928571428571429) internal successors, (181), 14 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-06-14 14:20:59,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 6 remaining) [2024-06-14 14:20:59,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 6 remaining) [2024-06-14 14:20:59,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 6 remaining) [2024-06-14 14:20:59,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-06-14 14:20:59,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-06-14 14:20:59,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-06-14 14:20:59,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-06-14 14:20:59,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-14 14:20:59,577 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-14 14:20:59,580 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-14 14:20:59,580 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-14 14:20:59,583 INFO L507 ceAbstractionStarter]: Automizer considered 3 witness invariants [2024-06-14 14:20:59,583 INFO L508 ceAbstractionStarter]: WitnessConsidered=3 [2024-06-14 14:20:59,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 02:20:59 BasicIcfg [2024-06-14 14:20:59,584 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-14 14:20:59,585 INFO L158 Benchmark]: Toolchain (without parser) took 5312.57ms. Allocated memory was 167.8MB in the beginning and 327.2MB in the end (delta: 159.4MB). Free memory was 90.7MB in the beginning and 169.5MB in the end (delta: -78.9MB). Peak memory consumption was 161.7MB. Max. memory is 16.1GB. [2024-06-14 14:20:59,585 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 120.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:59,586 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-14 14:20:59,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.85ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 90.5MB in the beginning and 188.5MB in the end (delta: -97.9MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-06-14 14:20:59,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.77ms. Allocated memory is still 220.2MB. Free memory was 188.5MB in the beginning and 184.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:20:59,590 INFO L158 Benchmark]: Boogie Preprocessor took 74.66ms. Allocated memory is still 220.2MB. Free memory was 184.3MB in the beginning and 181.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-14 14:20:59,590 INFO L158 Benchmark]: RCFGBuilder took 812.77ms. Allocated memory is still 220.2MB. Free memory was 181.1MB in the beginning and 76.3MB in the end (delta: 104.9MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. [2024-06-14 14:20:59,591 INFO L158 Benchmark]: TraceAbstraction took 3999.93ms. Allocated memory was 220.2MB in the beginning and 327.2MB in the end (delta: 107.0MB). Free memory was 76.3MB in the beginning and 169.5MB in the end (delta: -93.3MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2024-06-14 14:20:59,596 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 120.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 136.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.85ms. Allocated memory was 167.8MB in the beginning and 220.2MB in the end (delta: 52.4MB). Free memory was 90.5MB in the beginning and 188.5MB in the end (delta: -97.9MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.77ms. Allocated memory is still 220.2MB. Free memory was 188.5MB in the beginning and 184.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.66ms. Allocated memory is still 220.2MB. Free memory was 184.3MB in the beginning and 181.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 812.77ms. Allocated memory is still 220.2MB. Free memory was 181.1MB in the beginning and 76.3MB in the end (delta: 104.9MB). Peak memory consumption was 104.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3999.93ms. Allocated memory was 220.2MB in the beginning and 327.2MB in the end (delta: 107.0MB). Free memory was 76.3MB in the beginning and 169.5MB in the end (delta: -93.3MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 128]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 129]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 130]: 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, 69 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: 3.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 273 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 262 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 452 IncrementalHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 0 mSDtfsCounter, 452 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 2.2s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 1106 SizeOfPredicates, 2 NumberOfNonLiveVariables, 134 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! [2024-06-14 14:20:59,634 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