./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/08_rand_cas.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/08_rand_cas.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 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/pthread-ext/08_rand_cas.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/08_rand_cas.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 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.extract-columns-fced0e8-m [2024-01-31 16:01:19,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:01:19,388 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:01:19,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:01:19,392 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:01:19,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:01:19,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:01:19,421 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:01:19,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:01:19,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:01:19,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:01:19,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:01:19,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:01:19,423 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:01:19,423 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:01:19,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:01:19,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:01:19,424 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:01:19,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:01:19,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:01:19,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:01:19,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:01:19,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:01:19,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:01:19,427 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:01:19,427 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:01:19,427 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:01:19,427 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:01:19,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:01:19,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:01:19,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:01:19,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:01:19,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:01:19,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:01:19,429 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:01:19,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:01:19,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:01:19,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:01:19,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:01:19,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:01:19,430 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:01:19,433 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:01:19,433 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:01:19,433 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:01:19,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:01:19,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:01:19,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:01:19,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:01:19,688 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:01:19,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/08_rand_cas.i [2024-01-31 16:01:21,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:01:21,256 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:01:21,256 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i [2024-01-31 16:01:21,283 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae44966b/f31e02ff53b94f2389d7e575959bc579/FLAGe5489dcb5 [2024-01-31 16:01:21,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fae44966b/f31e02ff53b94f2389d7e575959bc579 [2024-01-31 16:01:21,300 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:01:21,300 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:01:21,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/08_rand_cas.yml/witness.yml [2024-01-31 16:01:21,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:01:21,411 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:01:21,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:01:21,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:01:21,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:01:21,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:01:21" (1/2) ... [2024-01-31 16:01:21,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f7d213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:01:21, skipping insertion in model container [2024-01-31 16:01:21,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:01:21" (1/2) ... [2024-01-31 16:01:21,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18ed139d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:01:21, skipping insertion in model container [2024-01-31 16:01:21,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:21" (2/2) ... [2024-01-31 16:01:21,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f7d213 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:21, skipping insertion in model container [2024-01-31 16:01:21,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:21" (2/2) ... [2024-01-31 16:01:21,422 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:01:21,524 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:01:21,525 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L730] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((((((((((((((4294967296LL + (long long )nexts) + (long long )read >= 0LL && (4294967296LL + (long long )casret) + (long long )read >= 0LL) && (4294967296LL + (long long )casret) + (long long )nexts >= 0LL) && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )read >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )nexts) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )read >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )nexts) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )read >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )nexts) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )read >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-31 16:01:21,525 INFO L98 nessWitnessExtractor]: Location invariant before [L776-L776] (unsigned long )arg == 0UL [2024-01-31 16:01:21,526 INFO L98 nessWitnessExtractor]: Location invariant before [L733-L733] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((4294967296LL + (long long )casret) + (long long )nexts >= 0LL && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-31 16:01:21,526 INFO L98 nessWitnessExtractor]: Location invariant before [L769-L769] (unsigned long )arg == 0UL [2024-01-31 16:01:21,526 INFO L98 nessWitnessExtractor]: Location invariant before [L717-L717] (v == & seed) && (u != 0) [2024-01-31 16:01:21,527 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] (((((((0LL - (long long )nexts) + (long long )read >= 0LL) && ((long long )nexts - (long long )read >= 0LL)) && (10 == n)) && (n == 10)) && (read != 0)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) [2024-01-31 16:01:21,527 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] (((10 == n) && (n == 10)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) [2024-01-31 16:01:21,527 INFO L98 nessWitnessExtractor]: Location invariant before [L773-L773] (unsigned long )arg == 0UL [2024-01-31 16:01:21,527 INFO L98 nessWitnessExtractor]: Location invariant before [L777-L777] (unsigned long )arg == 0UL [2024-01-31 16:01:21,527 INFO L98 nessWitnessExtractor]: Location invariant before [L772-L772] (unsigned long )arg == 0UL [2024-01-31 16:01:21,527 INFO L98 nessWitnessExtractor]: Location invariant before [L731-L731] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((((((((((((((4294967296LL + (long long )nexts) + (long long )read >= 0LL && (4294967296LL + (long long )casret) + (long long )read >= 0LL) && (4294967296LL + (long long )casret) + (long long )nexts >= 0LL) && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )read >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )nexts) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )read >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )nexts) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )read >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )nexts) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )read >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-31 16:01:21,527 INFO L98 nessWitnessExtractor]: Location invariant before [L736-L736] (((((((((0 <= casret) && (casret <= 1)) && ((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL)) && ((2147483649LL - (long long )casret) + (long long )nextInt_return >= 0LL)) && ((2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL)) && ((2147483648LL - (long long )casret) - (long long )nextInt_return >= 0LL)) && (10 == n)) && (n == 10)) && (nexts != 0)) && (casret == 0 || casret == 1) [2024-01-31 16:01:21,528 INFO L98 nessWitnessExtractor]: Location invariant before [L775-L775] (unsigned long )arg == 0UL [2024-01-31 16:01:21,528 INFO L98 nessWitnessExtractor]: Loop invariant at [L729-L729] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((((((((((((((4294967296LL + (long long )nexts) + (long long )read >= 0LL && (4294967296LL + (long long )casret) + (long long )read >= 0LL) && (4294967296LL + (long long )casret) + (long long )nexts >= 0LL) && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )read >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )nexts) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )read >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )nexts) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )read >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )nexts) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )read >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-31 16:01:21,528 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] (v == & seed) && (u != 0) [2024-01-31 16:01:21,528 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] calculateNext_return != 0 [2024-01-31 16:01:21,528 INFO L98 nessWitnessExtractor]: Location invariant before [L771-L771] (unsigned long )arg == 0UL [2024-01-31 16:01:21,528 INFO L98 nessWitnessExtractor]: Location invariant before [L737-L737] ((((((((2147483647LL + (long long )casret) + (long long )nextInt_return >= 0LL) && ((2147483649LL - (long long )casret) + (long long )nextInt_return >= 0LL)) && ((2147483646LL + (long long )casret) - (long long )nextInt_return >= 0LL)) && ((2147483648LL - (long long )casret) - (long long )nextInt_return >= 0LL)) && (10 == n)) && (n == 10)) && (casret == 1)) && (nexts != 0) [2024-01-31 16:01:21,529 INFO L98 nessWitnessExtractor]: Location invariant before [L735-L735] (((10 == n) && (n == 10)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) [2024-01-31 16:01:21,529 INFO L98 nessWitnessExtractor]: Location invariant before [L741-L741] (((((-9 <= nextInt_return) && (nextInt_return <= 9)) && (10 == n)) && (n == 10)) && (casret == 1)) && (nexts != 0) [2024-01-31 16:01:21,529 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] (v == & seed) && (u != 0) [2024-01-31 16:01:21,529 INFO L98 nessWitnessExtractor]: Location invariant before [L755-L755] (1 == init) && (init == 1) [2024-01-31 16:01:21,530 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((4294967296LL + (long long )casret) + (long long )nexts >= 0LL && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-31 16:01:21,530 INFO L98 nessWitnessExtractor]: Location invariant before [L766-L766] (unsigned long )arg == 0UL [2024-01-31 16:01:21,530 INFO L98 nessWitnessExtractor]: Location invariant before [L780-L780] (unsigned long )arg == 0UL [2024-01-31 16:01:21,530 INFO L98 nessWitnessExtractor]: Location invariant before [L770-L770] (unsigned long )arg == 0UL [2024-01-31 16:01:21,530 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] (-9 <= myrand) && (myrand <= 9) [2024-01-31 16:01:21,530 INFO L98 nessWitnessExtractor]: Location invariant after [L734-L734] (((((((0LL - (long long )nexts) + (long long )read >= 0LL) && ((long long )nexts - (long long )read >= 0LL)) && (10 == n)) && (n == 10)) && (read != 0)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) [2024-01-31 16:01:21,575 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:01:21,916 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[30837,30850] [2024-01-31 16:01:21,923 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[31185,31198] [2024-01-31 16:01:21,925 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[31448,31461] [2024-01-31 16:01:21,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:01:21,938 INFO L204 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 Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:01:22,065 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[30837,30850] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:01:22,085 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[31185,31198] Start Parsing Local Start Parsing Local [2024-01-31 16:01:22,087 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[31448,31461] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-31 16:01:22,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:01:22,123 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:01:22,123 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22 WrapperNode [2024-01-31 16:01:22,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:01:22,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:01:22,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:01:22,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:01:22,132 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 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,163 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 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,251 INFO L138 Inliner]: procedures = 178, calls = 211, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 723 [2024-01-31 16:01:22,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:01:22,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:01:22,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:01:22,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:01:22,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,314 INFO L175 MemorySlicer]: Split 185 memory accesses to 4 slices as follows [2, 6, 1, 176]. 95 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0, 0]. The 5 writes are split as follows [0, 2, 1, 2]. [2024-01-31 16:01:22,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,337 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:01:22,357 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:01:22,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:01:22,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:01:22,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (1/1) ... [2024-01-31 16:01:22,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:01:22,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:01:22,414 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) [2024-01-31 16:01:22,439 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 [2024-01-31 16:01:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 16:01:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 16:01:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 16:01:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-31 16:01:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-31 16:01:22,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-31 16:01:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:01:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:01:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:01:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:01:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:01:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:01:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:01:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:01:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:01:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:01:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:01:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:01:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:01:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:01:22,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:01:22,475 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:01:22,604 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:01:22,606 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:01:23,326 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:01:23,326 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:01:24,146 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:01:24,146 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-31 16:01:24,147 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:01:24 BoogieIcfgContainer [2024-01-31 16:01:24,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:01:24,151 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:01:24,151 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:01:24,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:01:24,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:01:21" (1/4) ... [2024-01-31 16:01:24,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cf88f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:01:24, skipping insertion in model container [2024-01-31 16:01:24,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:01:21" (2/4) ... [2024-01-31 16:01:24,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cf88f1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:01:24, skipping insertion in model container [2024-01-31 16:01:24,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:01:22" (3/4) ... [2024-01-31 16:01:24,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cf88f1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:01:24, skipping insertion in model container [2024-01-31 16:01:24,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:01:24" (4/4) ... [2024-01-31 16:01:24,157 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas.i [2024-01-31 16:01:24,172 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:01:24,172 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-01-31 16:01:24,172 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:01:24,296 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:01:24,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 97 transitions, 198 flow [2024-01-31 16:01:24,414 INFO L124 PetriNetUnfolderBase]: 11/99 cut-off events. [2024-01-31 16:01:24,416 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:24,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 99 events. 11/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 188 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 94. Up to 3 conditions per place. [2024-01-31 16:01:24,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 97 transitions, 198 flow [2024-01-31 16:01:24,422 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 97 transitions, 198 flow [2024-01-31 16:01:24,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:01:24,439 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;@2a4d6ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:01:24,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-01-31 16:01:24,441 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:01:24,441 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-31 16:01:24,442 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:24,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:24,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:01:24,443 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-31 16:01:24,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:24,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1539344642, now seen corresponding path program 1 times [2024-01-31 16:01:24,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:24,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737608677] [2024-01-31 16:01:24,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:24,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:24,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:24,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:01:24,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737608677] [2024-01-31 16:01:24,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737608677] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:01:24,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:01:24,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:01:24,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908651379] [2024-01-31 16:01:24,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:01:24,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:01:24,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:01:24,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:01:24,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:01:24,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 97 [2024-01-31 16:01:24,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 97 transitions, 198 flow. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-01-31 16:01:24,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:01:24,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 97 [2024-01-31 16:01:24,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:01:24,862 INFO L124 PetriNetUnfolderBase]: 86/293 cut-off events. [2024-01-31 16:01:24,863 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:24,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 293 events. 86/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 932 event pairs, 0 based on Foata normal form. 21/284 useless extension candidates. Maximal degree in co-relation 479. Up to 188 conditions per place. [2024-01-31 16:01:24,866 INFO L140 encePairwiseOnDemand]: 74/97 looper letters, 43 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-01-31 16:01:24,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 79 transitions, 252 flow [2024-01-31 16:01:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:01:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:01:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 204 transitions. [2024-01-31 16:01:24,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5257731958762887 [2024-01-31 16:01:24,878 INFO L175 Difference]: Start difference. First operand has 89 places, 97 transitions, 198 flow. Second operand 4 states and 204 transitions. [2024-01-31 16:01:24,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 79 transitions, 252 flow [2024-01-31 16:01:24,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-31 16:01:24,883 INFO L231 Difference]: Finished difference. Result has 78 places, 76 transitions, 160 flow [2024-01-31 16:01:24,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2024-01-31 16:01:24,887 INFO L281 CegarLoopForPetriNet]: 89 programPoint places, -11 predicate places. [2024-01-31 16:01:24,887 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 160 flow [2024-01-31 16:01:24,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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) [2024-01-31 16:01:24,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:24,888 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-01-31 16:01:24,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:01:24,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-31 16:01:24,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:24,889 INFO L85 PathProgramCache]: Analyzing trace with hash 474997508, now seen corresponding path program 1 times [2024-01-31 16:01:24,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:24,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649368030] [2024-01-31 16:01:24,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:24,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:01:24,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-31 16:01:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:01:24,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-31 16:01:24,927 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-31 16:01:24,928 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-01-31 16:01:24,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 61 remaining) [2024-01-31 16:01:24,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 61 remaining) [2024-01-31 16:01:24,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 61 remaining) [2024-01-31 16:01:24,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 61 remaining) [2024-01-31 16:01:24,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 61 remaining) [2024-01-31 16:01:24,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 61 remaining) [2024-01-31 16:01:24,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 61 remaining) [2024-01-31 16:01:24,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 61 remaining) [2024-01-31 16:01:24,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 61 remaining) [2024-01-31 16:01:24,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 61 remaining) [2024-01-31 16:01:24,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 61 remaining) [2024-01-31 16:01:24,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 61 remaining) [2024-01-31 16:01:24,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 61 remaining) [2024-01-31 16:01:24,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 61 remaining) [2024-01-31 16:01:24,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 61 remaining) [2024-01-31 16:01:24,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (44 of 61 remaining) [2024-01-31 16:01:24,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 61 remaining) [2024-01-31 16:01:24,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 61 remaining) [2024-01-31 16:01:24,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (41 of 61 remaining) [2024-01-31 16:01:24,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 61 remaining) [2024-01-31 16:01:24,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 61 remaining) [2024-01-31 16:01:24,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 61 remaining) [2024-01-31 16:01:24,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 61 remaining) [2024-01-31 16:01:24,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (36 of 61 remaining) [2024-01-31 16:01:24,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 61 remaining) [2024-01-31 16:01:24,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 61 remaining) [2024-01-31 16:01:24,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 61 remaining) [2024-01-31 16:01:24,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 61 remaining) [2024-01-31 16:01:24,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 61 remaining) [2024-01-31 16:01:24,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 61 remaining) [2024-01-31 16:01:24,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 61 remaining) [2024-01-31 16:01:24,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 61 remaining) [2024-01-31 16:01:24,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 61 remaining) [2024-01-31 16:01:24,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 61 remaining) [2024-01-31 16:01:24,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 61 remaining) [2024-01-31 16:01:24,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 61 remaining) [2024-01-31 16:01:24,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 61 remaining) [2024-01-31 16:01:24,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 61 remaining) [2024-01-31 16:01:24,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 61 remaining) [2024-01-31 16:01:24,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 61 remaining) [2024-01-31 16:01:24,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 61 remaining) [2024-01-31 16:01:24,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 61 remaining) [2024-01-31 16:01:24,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 61 remaining) [2024-01-31 16:01:24,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 61 remaining) [2024-01-31 16:01:24,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 61 remaining) [2024-01-31 16:01:24,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (14 of 61 remaining) [2024-01-31 16:01:24,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 61 remaining) [2024-01-31 16:01:24,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 61 remaining) [2024-01-31 16:01:24,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (11 of 61 remaining) [2024-01-31 16:01:24,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 61 remaining) [2024-01-31 16:01:24,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 61 remaining) [2024-01-31 16:01:24,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 61 remaining) [2024-01-31 16:01:24,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 61 remaining) [2024-01-31 16:01:24,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (6 of 61 remaining) [2024-01-31 16:01:24,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 61 remaining) [2024-01-31 16:01:24,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 61 remaining) [2024-01-31 16:01:24,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 61 remaining) [2024-01-31 16:01:24,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 61 remaining) [2024-01-31 16:01:24,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 61 remaining) [2024-01-31 16:01:24,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 61 remaining) [2024-01-31 16:01:24,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:01:24,940 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-31 16:01:24,942 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-31 16:01:24,943 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-31 16:01:25,130 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:01:25,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 189 transitions, 388 flow [2024-01-31 16:01:25,182 INFO L124 PetriNetUnfolderBase]: 22/194 cut-off events. [2024-01-31 16:01:25,183 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-31 16:01:25,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202 conditions, 194 events. 22/194 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 696 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 185. Up to 3 conditions per place. [2024-01-31 16:01:25,188 INFO L82 GeneralOperation]: Start removeDead. Operand has 172 places, 189 transitions, 388 flow [2024-01-31 16:01:25,192 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 172 places, 189 transitions, 388 flow [2024-01-31 16:01:25,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:01:25,195 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;@2a4d6ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:01:25,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-01-31 16:01:25,197 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:01:25,197 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-31 16:01:25,197 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:01:25,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:25,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:01:25,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-01-31 16:01:25,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:25,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1719798650, now seen corresponding path program 1 times [2024-01-31 16:01:25,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:25,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762258370] [2024-01-31 16:01:25,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:25,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:25,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:01:25,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762258370] [2024-01-31 16:01:25,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762258370] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:01:25,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:01:25,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:01:25,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534930184] [2024-01-31 16:01:25,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:01:25,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:01:25,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:01:25,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:01:25,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:01:25,346 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 189 [2024-01-31 16:01:25,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 189 transitions, 388 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-01-31 16:01:25,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:01:25,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 189 [2024-01-31 16:01:25,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:01:27,740 INFO L124 PetriNetUnfolderBase]: 7496/15367 cut-off events. [2024-01-31 16:01:27,741 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2024-01-31 16:01:27,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26966 conditions, 15367 events. 7496/15367 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 123922 event pairs, 72 based on Foata normal form. 1254/14997 useless extension candidates. Maximal degree in co-relation 26283. Up to 11288 conditions per place. [2024-01-31 16:01:27,848 INFO L140 encePairwiseOnDemand]: 156/189 looper letters, 119 selfloop transitions, 2 changer transitions 0/199 dead transitions. [2024-01-31 16:01:27,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 199 transitions, 655 flow [2024-01-31 16:01:27,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:01:27,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:01:27,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2024-01-31 16:01:27,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-01-31 16:01:27,856 INFO L175 Difference]: Start difference. First operand has 172 places, 189 transitions, 388 flow. Second operand 4 states and 476 transitions. [2024-01-31 16:01:27,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 199 transitions, 655 flow [2024-01-31 16:01:27,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 199 transitions, 655 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-31 16:01:27,861 INFO L231 Difference]: Finished difference. Result has 158 places, 158 transitions, 330 flow [2024-01-31 16:01:27,862 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=330, PETRI_PLACES=158, PETRI_TRANSITIONS=158} [2024-01-31 16:01:27,863 INFO L281 CegarLoopForPetriNet]: 172 programPoint places, -14 predicate places. [2024-01-31 16:01:27,863 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 158 transitions, 330 flow [2024-01-31 16:01:27,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-01-31 16:01:27,864 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:27,867 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-01-31 16:01:27,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-31 16:01:27,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-01-31 16:01:27,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:27,871 INFO L85 PathProgramCache]: Analyzing trace with hash -274052473, now seen corresponding path program 1 times [2024-01-31 16:01:27,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:27,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975103395] [2024-01-31 16:01:27,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:27,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:27,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-31 16:01:27,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:01:27,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975103395] [2024-01-31 16:01:27,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975103395] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:01:27,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:01:27,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:01:27,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718639746] [2024-01-31 16:01:27,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:01:27,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:01:27,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:01:27,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:01:27,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:01:28,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 189 [2024-01-31 16:01:28,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 158 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2024-01-31 16:01:28,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:01:28,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 189 [2024-01-31 16:01:28,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:01:30,606 INFO L124 PetriNetUnfolderBase]: 7484/15271 cut-off events. [2024-01-31 16:01:30,606 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2024-01-31 16:01:30,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26864 conditions, 15271 events. 7484/15271 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 282. Compared 121569 event pairs, 72 based on Foata normal form. 333/14005 useless extension candidates. Maximal degree in co-relation 26848. Up to 11063 conditions per place. [2024-01-31 16:01:30,690 INFO L140 encePairwiseOnDemand]: 177/189 looper letters, 156 selfloop transitions, 2 changer transitions 0/226 dead transitions. [2024-01-31 16:01:30,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 226 transitions, 782 flow [2024-01-31 16:01:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-31 16:01:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-31 16:01:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 480 transitions. [2024-01-31 16:01:30,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6349206349206349 [2024-01-31 16:01:30,693 INFO L175 Difference]: Start difference. First operand has 158 places, 158 transitions, 330 flow. Second operand 4 states and 480 transitions. [2024-01-31 16:01:30,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 226 transitions, 782 flow [2024-01-31 16:01:30,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 226 transitions, 779 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:01:30,697 INFO L231 Difference]: Finished difference. Result has 149 places, 148 transitions, 311 flow [2024-01-31 16:01:30,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=311, PETRI_PLACES=149, PETRI_TRANSITIONS=148} [2024-01-31 16:01:30,698 INFO L281 CegarLoopForPetriNet]: 172 programPoint places, -23 predicate places. [2024-01-31 16:01:30,698 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 148 transitions, 311 flow [2024-01-31 16:01:30,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2024-01-31 16:01:30,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:30,698 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-01-31 16:01:30,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-31 16:01:30,699 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-01-31 16:01:30,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash 94262071, now seen corresponding path program 1 times [2024-01-31 16:01:30,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:30,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383099776] [2024-01-31 16:01:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:01:30,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-31 16:01:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-31 16:01:30,725 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-31 16:01:30,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-31 16:01:30,725 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (90 of 91 remaining) [2024-01-31 16:01:30,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 91 remaining) [2024-01-31 16:01:30,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 91 remaining) [2024-01-31 16:01:30,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 91 remaining) [2024-01-31 16:01:30,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 91 remaining) [2024-01-31 16:01:30,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 91 remaining) [2024-01-31 16:01:30,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 91 remaining) [2024-01-31 16:01:30,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 91 remaining) [2024-01-31 16:01:30,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 91 remaining) [2024-01-31 16:01:30,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 91 remaining) [2024-01-31 16:01:30,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 91 remaining) [2024-01-31 16:01:30,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 91 remaining) [2024-01-31 16:01:30,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 91 remaining) [2024-01-31 16:01:30,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 91 remaining) [2024-01-31 16:01:30,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 91 remaining) [2024-01-31 16:01:30,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 91 remaining) [2024-01-31 16:01:30,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (74 of 91 remaining) [2024-01-31 16:01:30,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 91 remaining) [2024-01-31 16:01:30,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 91 remaining) [2024-01-31 16:01:30,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (71 of 91 remaining) [2024-01-31 16:01:30,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 91 remaining) [2024-01-31 16:01:30,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 91 remaining) [2024-01-31 16:01:30,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 91 remaining) [2024-01-31 16:01:30,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 91 remaining) [2024-01-31 16:01:30,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (66 of 91 remaining) [2024-01-31 16:01:30,729 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 91 remaining) [2024-01-31 16:01:30,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 91 remaining) [2024-01-31 16:01:30,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 91 remaining) [2024-01-31 16:01:30,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 91 remaining) [2024-01-31 16:01:30,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 91 remaining) [2024-01-31 16:01:30,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 91 remaining) [2024-01-31 16:01:30,730 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 91 remaining) [2024-01-31 16:01:30,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 91 remaining) [2024-01-31 16:01:30,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 91 remaining) [2024-01-31 16:01:30,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 91 remaining) [2024-01-31 16:01:30,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 91 remaining) [2024-01-31 16:01:30,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 91 remaining) [2024-01-31 16:01:30,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 91 remaining) [2024-01-31 16:01:30,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 91 remaining) [2024-01-31 16:01:30,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 91 remaining) [2024-01-31 16:01:30,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 91 remaining) [2024-01-31 16:01:30,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 91 remaining) [2024-01-31 16:01:30,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 91 remaining) [2024-01-31 16:01:30,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 91 remaining) [2024-01-31 16:01:30,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 91 remaining) [2024-01-31 16:01:30,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 91 remaining) [2024-01-31 16:01:30,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (44 of 91 remaining) [2024-01-31 16:01:30,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 91 remaining) [2024-01-31 16:01:30,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 91 remaining) [2024-01-31 16:01:30,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (41 of 91 remaining) [2024-01-31 16:01:30,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 91 remaining) [2024-01-31 16:01:30,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 91 remaining) [2024-01-31 16:01:30,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 91 remaining) [2024-01-31 16:01:30,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 91 remaining) [2024-01-31 16:01:30,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (36 of 91 remaining) [2024-01-31 16:01:30,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 91 remaining) [2024-01-31 16:01:30,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 91 remaining) [2024-01-31 16:01:30,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 91 remaining) [2024-01-31 16:01:30,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 91 remaining) [2024-01-31 16:01:30,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 91 remaining) [2024-01-31 16:01:30,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 91 remaining) [2024-01-31 16:01:30,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 91 remaining) [2024-01-31 16:01:30,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 91 remaining) [2024-01-31 16:01:30,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 91 remaining) [2024-01-31 16:01:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 91 remaining) [2024-01-31 16:01:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 91 remaining) [2024-01-31 16:01:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 91 remaining) [2024-01-31 16:01:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 91 remaining) [2024-01-31 16:01:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 91 remaining) [2024-01-31 16:01:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 91 remaining) [2024-01-31 16:01:30,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 91 remaining) [2024-01-31 16:01:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 91 remaining) [2024-01-31 16:01:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 91 remaining) [2024-01-31 16:01:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 91 remaining) [2024-01-31 16:01:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 91 remaining) [2024-01-31 16:01:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 91 remaining) [2024-01-31 16:01:30,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (14 of 91 remaining) [2024-01-31 16:01:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 91 remaining) [2024-01-31 16:01:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 91 remaining) [2024-01-31 16:01:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (11 of 91 remaining) [2024-01-31 16:01:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 91 remaining) [2024-01-31 16:01:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 91 remaining) [2024-01-31 16:01:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 91 remaining) [2024-01-31 16:01:30,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 91 remaining) [2024-01-31 16:01:30,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONERROR_FUNCTION (6 of 91 remaining) [2024-01-31 16:01:30,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 91 remaining) [2024-01-31 16:01:30,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 91 remaining) [2024-01-31 16:01:30,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 91 remaining) [2024-01-31 16:01:30,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 91 remaining) [2024-01-31 16:01:30,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 91 remaining) [2024-01-31 16:01:30,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 91 remaining) [2024-01-31 16:01:30,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-31 16:01:30,740 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-01-31 16:01:30,741 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-31 16:01:30,741 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-01-31 16:01:30,953 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-31 16:01:30,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 281 transitions, 580 flow [2024-01-31 16:01:31,008 INFO L124 PetriNetUnfolderBase]: 33/289 cut-off events. [2024-01-31 16:01:31,008 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-31 16:01:31,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 289 events. 33/289 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1338 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 276. Up to 4 conditions per place. [2024-01-31 16:01:31,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 255 places, 281 transitions, 580 flow [2024-01-31 16:01:31,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 255 places, 281 transitions, 580 flow [2024-01-31 16:01:31,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:01:31,021 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;@2a4d6ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:01:31,021 INFO L358 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2024-01-31 16:01:31,023 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:01:31,023 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-01-31 16:01:31,023 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-31 16:01:31,023 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:01:31,023 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-31 16:01:31,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-01-31 16:01:31,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:01:31,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1988045806, now seen corresponding path program 1 times [2024-01-31 16:01:31,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:01:31,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129550767] [2024-01-31 16:01:31,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:01:31,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:01:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:01:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:01:31,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:01:31,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129550767] [2024-01-31 16:01:31,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129550767] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:01:31,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:01:31,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:01:31,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516831865] [2024-01-31 16:01:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:01:31,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:01:31,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:01:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:01:31,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:01:31,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 281 [2024-01-31 16:01:31,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 281 transitions, 580 flow. Second operand has 4 states, 4 states have (on average 123.25) internal successors, (493), 4 states have internal predecessors, (493), 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) [2024-01-31 16:01:31,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:01:31,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 281 [2024-01-31 16:01:31,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand