./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc-dec.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version bcb38a6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc-dec.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-bcb38a6-m [2024-06-03 21:02:09,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-03 21:02:09,537 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-03 21:02:09,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-03 21:02:09,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-03 21:02:09,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-03 21:02:09,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-03 21:02:09,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-03 21:02:09,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-03 21:02:09,573 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-03 21:02:09,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-03 21:02:09,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-03 21:02:09,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-03 21:02:09,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-03 21:02:09,576 INFO L153 SettingsManager]: * Use SBE=true [2024-06-03 21:02:09,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-03 21:02:09,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-03 21:02:09,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-03 21:02:09,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-03 21:02:09,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-03 21:02:09,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-03 21:02:09,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-03 21:02:09,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-03 21:02:09,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-03 21:02:09,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-03 21:02:09,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-03 21:02:09,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-03 21:02:09,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-03 21:02:09,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-03 21:02:09,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-03 21:02:09,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-03 21:02:09,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-03 21:02:09,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:02:09,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-03 21:02:09,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-03 21:02:09,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-03 21:02:09,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-03 21:02:09,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-03 21:02:09,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-03 21:02:09,581 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-03 21:02:09,581 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-03 21:02:09,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-03 21:02:09,582 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-03 21:02:09,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-03 21:02:09,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-03 21:02:09,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-03 21:02:09,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-03 21:02:09,806 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-03 21:02:09,806 INFO L274 PluginConnector]: CDTParser initialized [2024-06-03 21:02:09,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-06-03 21:02:10,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-03 21:02:11,139 INFO L384 CDTParser]: Found 1 translation units. [2024-06-03 21:02:11,140 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-06-03 21:02:11,151 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec7140cb/ec80a98e73aa43f49710bc3e11545006/FLAGc9a2598ba [2024-06-03 21:02:11,161 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec7140cb/ec80a98e73aa43f49710bc3e11545006 [2024-06-03 21:02:11,165 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-03 21:02:11,165 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-03 21:02:11,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/popl20-min-max-inc-dec.wvr.yml/witness.yml [2024-06-03 21:02:11,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-03 21:02:11,241 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-03 21:02:11,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-03 21:02:11,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-03 21:02:11,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-03 21:02:11,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:02:11" (1/2) ... [2024-06-03 21:02:11,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad2d8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:11, skipping insertion in model container [2024-06-03 21:02:11,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.06 09:02:11" (1/2) ... [2024-06-03 21:02:11,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b01a34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.06 09:02:11, skipping insertion in model container [2024-06-03 21:02:11,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:02:11" (2/2) ... [2024-06-03 21:02:11,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad2d8c6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:02:11, skipping insertion in model container [2024-06-03 21:02:11,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:02:11" (2/2) ... [2024-06-03 21:02:11,250 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-03 21:02:11,268 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-03 21:02:11,270 INFO L97 edCorrectnessWitness]: Location invariant before [L126-L126] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-03 21:02:11,270 INFO L97 edCorrectnessWitness]: Location invariant before [L124-L124] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-03 21:02:11,273 INFO L97 edCorrectnessWitness]: Location invariant before [L125-L125] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-03 21:02:11,273 INFO L97 edCorrectnessWitness]: Location invariant before [L127-L127] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-03 21:02:11,273 INFO L97 edCorrectnessWitness]: Location invariant before [L123-L123] ! multithreaded || ((((((((((((((((((((((((2147483648LL + (long long )N) + (long long )v_assert >= 0LL && (2147483648LL + (long long )N) + (long long )b1 >= 0LL) && (2147483648LL + (long long )N) + (long long )b2 >= 0LL) && (1LL - (long long )b1) + (long long )v_assert >= 0LL) && (1LL - (long long )b1) + (long long )b2 >= 0LL) && (1LL - (long long )b2) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )v_assert >= 0LL) && (2147483647LL - (long long )N) + (long long )b1 >= 0LL) && (2147483647LL - (long long )N) + (long long )b2 >= 0LL) && (long long )b1 + (long long )v_assert >= 0LL) && (long long )b1 + (long long )b2 >= 0LL) && (long long )b2 + (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )v_assert >= 0LL) && (1LL + (long long )b1) - (long long )b2 >= 0LL) && (1LL + (long long )b2) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )v_assert >= 0LL) && (2147483649LL + (long long )N) - (long long )b1 >= 0LL) && (2147483649LL + (long long )N) - (long long )b2 >= 0LL) && (2LL - (long long )b1) - (long long )v_assert >= 0LL) && (2LL - (long long )b1) - (long long )b2 >= 0LL) && (2LL - (long long )b2) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )v_assert >= 0LL) && (2147483648LL - (long long )N) - (long long )b1 >= 0LL) && (2147483648LL - (long long )N) - (long long )b2 >= 0LL) [2024-06-03 21:02:11,273 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-03 21:02:11,274 INFO L106 edCorrectnessWitness]: ghost_update [L122-L122] multithreaded = 1; [2024-06-03 21:02:11,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-03 21:02:11,482 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:02:11,489 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-03 21:02:11,617 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-03 21:02:11,647 INFO L206 MainTranslator]: Completed translation [2024-06-03 21:02:11,648 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 03.06 09:02:11 WrapperNode [2024-06-03 21:02:11,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-03 21:02:11,649 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-03 21:02:11,650 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-03 21:02:11,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-03 21:02:11,656 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,665 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,705 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 158 [2024-06-03 21:02:11,706 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-03 21:02:11,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-03 21:02:11,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-03 21:02:11,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-03 21:02:11,723 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,724 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,736 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,750 INFO L175 MemorySlicer]: Split 15 memory accesses to 2 slices as follows [2, 13]. 87 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-06-03 21:02:11,751 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,751 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,759 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,774 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,776 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,777 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,781 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-03 21:02:11,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-03 21:02:11,781 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-03 21:02:11,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-03 21:02:11,782 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 09:02:11" (1/1) ... [2024-06-03 21:02:11,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-03 21:02:11,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:02:11,817 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 21:02:11,842 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 21:02:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-03 21:02:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-06-03 21:02:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-06-03 21:02:11,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-06-03 21:02:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-06-03 21:02:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-03 21:02:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-03 21:02:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-03 21:02:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-03 21:02:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-03 21:02:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-03 21:02:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-03 21:02:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-03 21:02:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-03 21:02:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-03 21:02:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-06-03 21:02:11,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-06-03 21:02:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-03 21:02:11,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-03 21:02:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-06-03 21:02:11,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-03 21:02:11,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-03 21:02:11,869 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 21:02:11,965 INFO L244 CfgBuilder]: Building ICFG [2024-06-03 21:02:11,967 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-03 21:02:12,416 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-03 21:02:12,416 INFO L293 CfgBuilder]: Performing block encoding [2024-06-03 21:02:12,624 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-03 21:02:12,624 INFO L320 CfgBuilder]: Removed 5 assume(true) statements. [2024-06-03 21:02:12,624 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:02:12 BoogieIcfgContainer [2024-06-03 21:02:12,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-03 21:02:12,626 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-03 21:02:12,626 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-03 21:02:12,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-03 21:02:12,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.06 09:02:11" (1/4) ... [2024-06-03 21:02:12,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189cdd97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.06 09:02:12, skipping insertion in model container [2024-06-03 21:02:12,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 03.06 09:02:11" (2/4) ... [2024-06-03 21:02:12,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189cdd97 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:02:12, skipping insertion in model container [2024-06-03 21:02:12,630 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 09:02:11" (3/4) ... [2024-06-03 21:02:12,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@189cdd97 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 03.06 09:02:12, skipping insertion in model container [2024-06-03 21:02:12,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.06 09:02:12" (4/4) ... [2024-06-03 21:02:12,631 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2024-06-03 21:02:12,643 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-03 21:02:12,644 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2024-06-03 21:02:12,644 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-03 21:02:12,686 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-06-03 21:02:12,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 62 transitions, 159 flow [2024-06-03 21:02:12,730 INFO L124 PetriNetUnfolderBase]: 5/57 cut-off events. [2024-06-03 21:02:12,730 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-06-03 21:02:12,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 57 events. 5/57 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 90 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-06-03 21:02:12,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 62 transitions, 159 flow [2024-06-03 21:02:12,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 54 transitions, 132 flow [2024-06-03 21:02:12,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-03 21:02:12,746 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;@77d1e722, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-03 21:02:12,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-06-03 21:02:12,749 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-03 21:02:12,749 INFO L124 PetriNetUnfolderBase]: 1/8 cut-off events. [2024-06-03 21:02:12,749 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:02:12,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:02:12,750 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:02:12,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-03 21:02:12,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:02:12,754 INFO L85 PathProgramCache]: Analyzing trace with hash 742168809, now seen corresponding path program 1 times [2024-06-03 21:02:12,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:02:12,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075602444] [2024-06-03 21:02:12,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:02:12,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:02:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:02:13,072 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 21:02:13,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:02:13,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075602444] [2024-06-03 21:02:13,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075602444] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-03 21:02:13,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-03 21:02:13,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-03 21:02:13,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370284484] [2024-06-03 21:02:13,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-03 21:02:13,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-03 21:02:13,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:02:13,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-03 21:02:13,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-03 21:02:13,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 62 [2024-06-03 21:02:13,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 54 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 21:02:13,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:02:13,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 62 [2024-06-03 21:02:13,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:02:15,065 INFO L124 PetriNetUnfolderBase]: 15294/21699 cut-off events. [2024-06-03 21:02:15,066 INFO L125 PetriNetUnfolderBase]: For 670/670 co-relation queries the response was YES. [2024-06-03 21:02:15,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41557 conditions, 21699 events. 15294/21699 cut-off events. For 670/670 co-relation queries the response was YES. Maximal size of possible extension queue 1042. Compared 139926 event pairs, 9705 based on Foata normal form. 0/20298 useless extension candidates. Maximal degree in co-relation 39370. Up to 18589 conditions per place. [2024-06-03 21:02:15,293 INFO L140 encePairwiseOnDemand]: 59/62 looper letters, 33 selfloop transitions, 2 changer transitions 3/55 dead transitions. [2024-06-03 21:02:15,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 55 transitions, 210 flow [2024-06-03 21:02:15,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-03 21:02:15,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-03 21:02:15,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-06-03 21:02:15,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5645161290322581 [2024-06-03 21:02:15,304 INFO L175 Difference]: Start difference. First operand has 65 places, 54 transitions, 132 flow. Second operand 3 states and 105 transitions. [2024-06-03 21:02:15,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 55 transitions, 210 flow [2024-06-03 21:02:15,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 55 transitions, 196 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-06-03 21:02:15,348 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 121 flow [2024-06-03 21:02:15,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-06-03 21:02:15,352 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -5 predicate places. [2024-06-03 21:02:15,352 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 121 flow [2024-06-03 21:02:15,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 21:02:15,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-03 21:02:15,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-06-03 21:02:15,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-03 21:02:15,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 7 more)] === [2024-06-03 21:02:15,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-03 21:02:15,354 INFO L85 PathProgramCache]: Analyzing trace with hash 452315185, now seen corresponding path program 1 times [2024-06-03 21:02:15,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-03 21:02:15,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658126371] [2024-06-03 21:02:15,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:02:15,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-03 21:02:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:02:15,680 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 21:02:15,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-03 21:02:15,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658126371] [2024-06-03 21:02:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658126371] provided 0 perfect and 1 imperfect interpolant sequences [2024-06-03 21:02:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959355432] [2024-06-03 21:02:15,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-03 21:02:15,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-06-03 21:02:15,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-03 21:02:15,683 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 21:02:15,708 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 21:02:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-03 21:02:15,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 14 conjunts are in the unsatisfiable core [2024-06-03 21:02:15,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-06-03 21:02:15,865 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 21:02:15,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-06-03 21:02:16,181 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 21:02:16,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959355432] provided 0 perfect and 2 imperfect interpolant sequences [2024-06-03 21:02:16,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-06-03 21:02:16,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 8 [2024-06-03 21:02:16,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741343125] [2024-06-03 21:02:16,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-06-03 21:02:16,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-06-03 21:02:16,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-03 21:02:16,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-06-03 21:02:16,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-06-03 21:02:16,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 62 [2024-06-03 21:02:16,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 121 flow. Second operand has 10 states, 10 states have (on average 15.9) internal successors, (159), 10 states have internal predecessors, (159), 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 21:02:16,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-03 21:02:16,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 62 [2024-06-03 21:02:16,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-03 21:02:18,190 INFO L124 PetriNetUnfolderBase]: 25537/33346 cut-off events. [2024-06-03 21:02:18,190 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-03 21:02:18,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65721 conditions, 33346 events. 25537/33346 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1285. Compared 186246 event pairs, 4780 based on Foata normal form. 1680/34339 useless extension candidates. Maximal degree in co-relation 65710. Up to 29507 conditions per place. [2024-06-03 21:02:18,242 INFO L140 encePairwiseOnDemand]: 51/62 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2024-06-03 21:02:18,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 76 transitions, 314 flow [2024-06-03 21:02:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-03 21:02:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-03 21:02:18,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2024-06-03 21:02:18,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4327956989247312 [2024-06-03 21:02:18,245 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 121 flow. Second operand 6 states and 161 transitions. [2024-06-03 21:02:18,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 76 transitions, 314 flow [2024-06-03 21:02:18,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 76 transitions, 310 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-06-03 21:02:18,246 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2024-06-03 21:02:18,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2024-06-03 21:02:18,247 INFO L281 CegarLoopForPetriNet]: 65 programPoint places, -9 predicate places. [2024-06-03 21:02:18,247 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2024-06-03 21:02:18,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.9) internal successors, (159), 10 states have internal predecessors, (159), 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 21:02:18,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 10 remaining) [2024-06-03 21:02:18,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 10 remaining) [2024-06-03 21:02:18,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 10 remaining) [2024-06-03 21:02:18,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 10 remaining) [2024-06-03 21:02:18,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 10 remaining) [2024-06-03 21:02:18,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-06-03 21:02:18,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 10 remaining) [2024-06-03 21:02:18,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2024-06-03 21:02:18,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2024-06-03 21:02:18,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-06-03 21:02:18,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-06-03 21:02:18,462 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 21:02:18,463 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-03 21:02:18,466 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-03 21:02:18,466 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-03 21:02:18,469 INFO L507 ceAbstractionStarter]: Automizer considered 5 witness invariants [2024-06-03 21:02:18,469 INFO L508 ceAbstractionStarter]: WitnessConsidered=5 [2024-06-03 21:02:18,470 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.06 09:02:18 BasicIcfg [2024-06-03 21:02:18,470 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-03 21:02:18,471 INFO L158 Benchmark]: Toolchain (without parser) took 7229.69ms. Allocated memory was 136.3MB in the beginning and 2.3GB in the end (delta: 2.2GB). Free memory was 61.1MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 719.4MB. Max. memory is 16.1GB. [2024-06-03 21:02:18,471 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 136.3MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:02:18,471 INFO L158 Benchmark]: Witness Parser took 0.40ms. Allocated memory is still 136.3MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-03 21:02:18,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 406.58ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 60.9MB in the beginning and 128.6MB in the end (delta: -67.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2024-06-03 21:02:18,472 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.07ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 123.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-03 21:02:18,472 INFO L158 Benchmark]: Boogie Preprocessor took 74.43ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 120.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-06-03 21:02:18,473 INFO L158 Benchmark]: RCFGBuilder took 843.37ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 105.2MB in the end (delta: 15.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-06-03 21:02:18,473 INFO L158 Benchmark]: TraceAbstraction took 5844.23ms. Allocated memory was 167.8MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 104.2MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 731.2MB. Max. memory is 16.1GB. [2024-06-03 21:02:18,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 136.3MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.40ms. Allocated memory is still 136.3MB. Free memory is still 64.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 406.58ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 60.9MB in the beginning and 128.6MB in the end (delta: -67.6MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.07ms. Allocated memory is still 167.8MB. Free memory was 128.6MB in the beginning and 123.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.43ms. Allocated memory is still 167.8MB. Free memory was 123.8MB in the beginning and 120.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 843.37ms. Allocated memory is still 167.8MB. Free memory was 120.2MB in the beginning and 105.2MB in the end (delta: 15.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5844.23ms. Allocated memory was 167.8MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 104.2MB in the beginning and 2.0GB in the end (delta: -1.9GB). Peak memory consumption was 731.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 124]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 125]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 126]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 127]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 90 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 369 IncrementalHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 2 mSDtfsCounter, 369 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 762 SizeOfPredicates, 1 NumberOfNonLiveVariables, 89 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-03 21:02:18,494 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