./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 59af5db6 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-dev-59af5db-m [2024-02-02 09:11:53,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:11:53,421 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:11:53,433 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:11:53,434 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:11:53,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:11:53,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:11:53,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:11:53,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:11:53,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:11:53,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:11:53,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:11:53,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:11:53,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:11:53,481 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:11:53,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:11:53,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:11:53,481 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:11:53,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:11:53,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:11:53,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:11:53,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:11:53,483 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:11:53,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:11:53,483 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:11:53,484 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:11:53,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:11:53,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:11:53,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:11:53,485 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:11:53,486 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:11:53,486 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:11:53,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:11:53,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:11:53,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:11:53,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:11:53,487 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:11:53,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:11:53,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:11:53,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:11:53,489 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:11:53,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:11:53,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:11:53,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:11:53,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:11:53,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:11:53,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:11:53,791 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:11:53,791 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:11:53,793 INFO L431 ainManager$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 [2024-02-02 09:11:53,953 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:11:53,953 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:11:53,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/08_rand_cas.i [2024-02-02 09:11:55,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:11:55,450 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:11:55,451 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i [2024-02-02 09:11:55,464 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a59c765/9f2e38efa2d94032a0b3390cdf03cb75/FLAGbf924e6e2 [2024-02-02 09:11:55,478 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0a59c765/9f2e38efa2d94032a0b3390cdf03cb75 [2024-02-02 09:11:55,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:11:55,480 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:11:55,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:11:55,485 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:11:55,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:11:55,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:11:53" (1/2) ... [2024-02-02 09:11:55,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734197d1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:11:55, skipping insertion in model container [2024-02-02 09:11:55,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:11:53" (1/2) ... [2024-02-02 09:11:55,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38f8382 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:11:55, skipping insertion in model container [2024-02-02 09:11:55,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:11:55" (2/2) ... [2024-02-02 09:11:55,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734197d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:55, skipping insertion in model container [2024-02-02 09:11:55,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:11:55" (2/2) ... [2024-02-02 09:11:55,498 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:11:55,609 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:11:55,611 INFO L101 nessWitnessExtractor]: Location invariant before [L717-L724] (v == & seed) && (u != 0) [2024-02-02 09:11:55,611 INFO L101 nessWitnessExtractor]: Location invariant before [L766-L766] (unsigned long )arg == 0UL [2024-02-02 09:11:55,611 INFO L101 nessWitnessExtractor]: Loop invariant at [L729-L740] ((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)) [2024-02-02 09:11:55,612 INFO L101 nessWitnessExtractor]: Location invariant before [L775-L775] (unsigned long )arg == 0UL [2024-02-02 09:11:55,612 INFO L101 nessWitnessExtractor]: Location invariant after [L711-L725] ((((0 <= *r) && (*r <= 1)) && (v == & seed)) && (u != 0)) && (*r == 0 || *r == 1) [2024-02-02 09:11:55,613 INFO L101 nessWitnessExtractor]: Location invariant after [L701-L705] (int )m == 1 [2024-02-02 09:11:55,613 INFO L101 nessWitnessExtractor]: Location invariant before [L736-L739] (((((((((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) [2024-02-02 09:11:55,613 INFO L101 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)) [2024-02-02 09:11:55,613 INFO L101 nessWitnessExtractor]: Location invariant before [L776-L776] (unsigned long )arg == 0UL [2024-02-02 09:11:55,613 INFO L101 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)) [2024-02-02 09:11:55,614 INFO L101 nessWitnessExtractor]: Location invariant before [L741-L741] (((((-9 <= nextInt_return) && (nextInt_return <= 9)) && (10 == n)) && (n == 10)) && (casret == 1)) && (nexts != 0) [2024-02-02 09:11:55,614 INFO L101 nessWitnessExtractor]: Location invariant before [L777-L777] (unsigned long )arg == 0UL [2024-02-02 09:11:55,614 INFO L101 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))) && ((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)) [2024-02-02 09:11:55,614 INFO L101 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)) [2024-02-02 09:11:55,614 INFO L101 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)) [2024-02-02 09:11:55,615 INFO L101 nessWitnessExtractor]: Location invariant before [L780-L780] (unsigned long )arg == 0UL [2024-02-02 09:11:55,615 INFO L101 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))) && ((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)) [2024-02-02 09:11:55,615 INFO L101 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)) [2024-02-02 09:11:55,615 INFO L101 nessWitnessExtractor]: Location invariant before [L769-L769] (unsigned long )arg == 0UL [2024-02-02 09:11:55,615 INFO L101 nessWitnessExtractor]: Location invariant before [L719-L719] (v == & seed) && (u != 0) [2024-02-02 09:11:55,615 INFO L101 nessWitnessExtractor]: Location invariant after [L753-L756] (1 == init) && (init == 1) [2024-02-02 09:11:55,620 INFO L101 nessWitnessExtractor]: Location invariant after [L706-L710] (int )m == 0 [2024-02-02 09:11:55,620 INFO L101 nessWitnessExtractor]: Location invariant before [L770-L770] (unsigned long )arg == 0UL [2024-02-02 09:11:55,620 INFO L101 nessWitnessExtractor]: Location invariant before [L755-L755] (1 == init) && (init == 1) [2024-02-02 09:11:55,621 INFO L101 nessWitnessExtractor]: Location invariant before [L773-L773] (unsigned long )arg == 0UL [2024-02-02 09:11:55,621 INFO L101 nessWitnessExtractor]: Location invariant before [L698-L698] calculateNext_return != 0 [2024-02-02 09:11:55,621 INFO L101 nessWitnessExtractor]: Location invariant before [L761-L761] (-9 <= myrand) && (myrand <= 9) [2024-02-02 09:11:55,621 INFO L101 nessWitnessExtractor]: Location invariant after [L757-L762] (-9 <= myrand) && (myrand <= 9) [2024-02-02 09:11:55,621 INFO L101 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) [2024-02-02 09:11:55,621 INFO L101 nessWitnessExtractor]: Location invariant before [L761-L761] (-9 <= myrand) && (myrand <= 9) [2024-02-02 09:11:55,622 INFO L101 nessWitnessExtractor]: Location invariant before [L723-L723] (v == & seed) && (u != 0) [2024-02-02 09:11:55,622 INFO L101 nessWitnessExtractor]: Location invariant before [L771-L771] (unsigned long )arg == 0UL [2024-02-02 09:11:55,622 INFO L101 nessWitnessExtractor]: Location invariant before [L772-L772] (unsigned long )arg == 0UL [2024-02-02 09:11:55,672 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:11:56,160 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] [2024-02-02 09:11:56,172 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] [2024-02-02 09:11:56,176 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] [2024-02-02 09:11:56,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:11:56,193 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-02-02 09:11:56,262 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_acquire() { assume_abort_if_not(m==0); m = 1; } with a witness entry [2024-02-02 09:11:56,263 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_release() { assume_abort_if_not(m==1); m = 0; } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:11:56,269 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_CAS( volatile int *v, int e, int u, int *r) { if(*v == e) { *v = u, *r = 1; } else { *r = 0; } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:11:56,317 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 [2024-02-02 09:11:56,327 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:11:56,349 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 [2024-02-02 09:11:56,350 WARN L424 MainDispatcher]: Unable to annotate inline void PseudoRandomUsingAtomic_constructor(int init) { seed = init; } with a witness entry [2024-02-02 09:11:56,351 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 [2024-02-02 09:11:56,351 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry [2024-02-02 09:11:56,352 WARN L424 MainDispatcher]: Unable to annotate inline void PseudoRandomUsingAtomic__threadmain() { int myrand; myrand = PseudoRandomUsingAtomic_nextInt(10); { if(!(myrand <= 10)) { ERROR: {reach_error();abort();}(void)0; } }; } with a witness entry 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 [2024-02-02 09:11:56,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:11:56,391 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:11:56,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56 WrapperNode [2024-02-02 09:11:56,393 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:11:56,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:11:56,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:11:56,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:11:56,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,421 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,472 INFO L138 Inliner]: procedures = 178, calls = 233, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 775 [2024-02-02 09:11:56,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:11:56,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:11:56,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:11:56,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:11:56,487 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,530 INFO L175 MemorySlicer]: Split 207 memory accesses to 4 slices as follows [2, 6, 198, 1]. 96 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, 2, 1]. [2024-02-02 09:11:56,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:11:56,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:11:56,604 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:11:56,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:11:56,605 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (1/1) ... [2024-02-02 09:11:56,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:11:56,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:11:56,637 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) [2024-02-02 09:11:56,663 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 [2024-02-02 09:11:56,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:11:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:11:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:11:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:11:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-02-02 09:11:56,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-02-02 09:11:56,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:11:56,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:11:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:11:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:11:56,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:11:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:11:56,682 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:11:56,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:11:56,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:11:56,684 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:11:56,894 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:11:56,895 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:11:57,791 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:11:57,791 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:11:59,023 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:11:59,023 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-02 09:11:59,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:11:59 BoogieIcfgContainer [2024-02-02 09:11:59,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:11:59,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:11:59,026 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:11:59,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:11:59,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:11:53" (1/4) ... [2024-02-02 09:11:59,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fd05bd and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:11:59, skipping insertion in model container [2024-02-02 09:11:59,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:11:55" (2/4) ... [2024-02-02 09:11:59,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fd05bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:11:59, skipping insertion in model container [2024-02-02 09:11:59,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:11:56" (3/4) ... [2024-02-02 09:11:59,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fd05bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:11:59, skipping insertion in model container [2024-02-02 09:11:59,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:11:59" (4/4) ... [2024-02-02 09:11:59,035 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas.i [2024-02-02 09:11:59,052 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:11:59,052 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-02-02 09:11:59,052 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:11:59,210 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-02 09:11:59,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 95 transitions, 194 flow [2024-02-02 09:11:59,303 INFO L124 PetriNetUnfolderBase]: 10/97 cut-off events. [2024-02-02 09:11:59,303 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:11:59,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 97 events. 10/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 185 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 92. Up to 3 conditions per place. [2024-02-02 09:11:59,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 95 transitions, 194 flow [2024-02-02 09:11:59,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 95 transitions, 194 flow [2024-02-02 09:11:59,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:11:59,336 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;@737ec5bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:11:59,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-02-02 09:11:59,340 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:11:59,340 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-02-02 09:11:59,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:11:59,340 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:11:59,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:11:59,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-02-02 09:11:59,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:11:59,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1642224942, now seen corresponding path program 1 times [2024-02-02 09:11:59,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:11:59,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443588598] [2024-02-02 09:11:59,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:11:59,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:11:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:11:59,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:11:59,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:11:59,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443588598] [2024-02-02 09:11:59,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443588598] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:11:59,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:11:59,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:11:59,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889161406] [2024-02-02 09:11:59,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:11:59,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:11:59,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:11:59,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:11:59,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:11:59,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 95 [2024-02-02 09:11:59,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 194 flow. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2024-02-02 09:11:59,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:11:59,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 95 [2024-02-02 09:11:59,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:12:00,079 INFO L124 PetriNetUnfolderBase]: 82/286 cut-off events. [2024-02-02 09:12:00,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:12:00,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 286 events. 82/286 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 936 event pairs, 0 based on Foata normal form. 21/277 useless extension candidates. Maximal degree in co-relation 462. Up to 178 conditions per place. [2024-02-02 09:12:00,084 INFO L140 encePairwiseOnDemand]: 73/95 looper letters, 41 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2024-02-02 09:12:00,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 78 transitions, 246 flow [2024-02-02 09:12:00,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:12:00,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:12:00,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-02-02 09:12:00,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5394736842105263 [2024-02-02 09:12:00,099 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 194 flow. Second operand 4 states and 205 transitions. [2024-02-02 09:12:00,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 78 transitions, 246 flow [2024-02-02 09:12:00,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-02 09:12:00,143 INFO L231 Difference]: Finished difference. Result has 77 places, 75 transitions, 158 flow [2024-02-02 09:12:00,147 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=95, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=158, PETRI_PLACES=77, PETRI_TRANSITIONS=75} [2024-02-02 09:12:00,155 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -11 predicate places. [2024-02-02 09:12:00,156 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 75 transitions, 158 flow [2024-02-02 09:12:00,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2024-02-02 09:12:00,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:12:00,157 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-02-02 09:12:00,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:12:00,161 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-02-02 09:12:00,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:12:00,161 INFO L85 PathProgramCache]: Analyzing trace with hash -630673721, now seen corresponding path program 1 times [2024-02-02 09:12:00,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:12:00,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151689180] [2024-02-02 09:12:00,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:12:00,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:12:00,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:12:00,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:12:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:12:00,223 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:12:00,223 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:12:00,225 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-02-02 09:12:00,226 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 61 remaining) [2024-02-02 09:12:00,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 61 remaining) [2024-02-02 09:12:00,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 61 remaining) [2024-02-02 09:12:00,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 61 remaining) [2024-02-02 09:12:00,227 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 61 remaining) [2024-02-02 09:12:00,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 61 remaining) [2024-02-02 09:12:00,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 61 remaining) [2024-02-02 09:12:00,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 61 remaining) [2024-02-02 09:12:00,229 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 61 remaining) [2024-02-02 09:12:00,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 61 remaining) [2024-02-02 09:12:00,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 61 remaining) [2024-02-02 09:12:00,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 61 remaining) [2024-02-02 09:12:00,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 61 remaining) [2024-02-02 09:12:00,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 61 remaining) [2024-02-02 09:12:00,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 61 remaining) [2024-02-02 09:12:00,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 61 remaining) [2024-02-02 09:12:00,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (43 of 61 remaining) [2024-02-02 09:12:00,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 61 remaining) [2024-02-02 09:12:00,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 61 remaining) [2024-02-02 09:12:00,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (40 of 61 remaining) [2024-02-02 09:12:00,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 61 remaining) [2024-02-02 09:12:00,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 61 remaining) [2024-02-02 09:12:00,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (37 of 61 remaining) [2024-02-02 09:12:00,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 61 remaining) [2024-02-02 09:12:00,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 61 remaining) [2024-02-02 09:12:00,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 61 remaining) [2024-02-02 09:12:00,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 61 remaining) [2024-02-02 09:12:00,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 61 remaining) [2024-02-02 09:12:00,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 61 remaining) [2024-02-02 09:12:00,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 61 remaining) [2024-02-02 09:12:00,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 61 remaining) [2024-02-02 09:12:00,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 61 remaining) [2024-02-02 09:12:00,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 61 remaining) [2024-02-02 09:12:00,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 61 remaining) [2024-02-02 09:12:00,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 61 remaining) [2024-02-02 09:12:00,239 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 61 remaining) [2024-02-02 09:12:00,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 61 remaining) [2024-02-02 09:12:00,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 61 remaining) [2024-02-02 09:12:00,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 61 remaining) [2024-02-02 09:12:00,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 61 remaining) [2024-02-02 09:12:00,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 61 remaining) [2024-02-02 09:12:00,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 61 remaining) [2024-02-02 09:12:00,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 61 remaining) [2024-02-02 09:12:00,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 61 remaining) [2024-02-02 09:12:00,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 61 remaining) [2024-02-02 09:12:00,241 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 61 remaining) [2024-02-02 09:12:00,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (13 of 61 remaining) [2024-02-02 09:12:00,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 61 remaining) [2024-02-02 09:12:00,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 61 remaining) [2024-02-02 09:12:00,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (10 of 61 remaining) [2024-02-02 09:12:00,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 61 remaining) [2024-02-02 09:12:00,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 61 remaining) [2024-02-02 09:12:00,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (7 of 61 remaining) [2024-02-02 09:12:00,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 61 remaining) [2024-02-02 09:12:00,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 61 remaining) [2024-02-02 09:12:00,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 61 remaining) [2024-02-02 09:12:00,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 61 remaining) [2024-02-02 09:12:00,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 61 remaining) [2024-02-02 09:12:00,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 61 remaining) [2024-02-02 09:12:00,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 61 remaining) [2024-02-02 09:12:00,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:12:00,249 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-02-02 09:12:00,252 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-02-02 09:12:00,252 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-02-02 09:12:00,462 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-02 09:12:00,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 185 transitions, 380 flow [2024-02-02 09:12:00,527 INFO L124 PetriNetUnfolderBase]: 20/190 cut-off events. [2024-02-02 09:12:00,527 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-02-02 09:12:00,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198 conditions, 190 events. 20/190 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 695 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 181. Up to 3 conditions per place. [2024-02-02 09:12:00,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 185 transitions, 380 flow [2024-02-02 09:12:00,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 185 transitions, 380 flow [2024-02-02 09:12:00,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:12:00,541 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;@737ec5bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:12:00,541 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-02-02 09:12:00,543 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:12:00,543 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-02-02 09:12:00,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:12:00,543 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:12:00,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:12:00,544 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-02-02 09:12:00,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:12:00,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1818859744, now seen corresponding path program 1 times [2024-02-02 09:12:00,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:12:00,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34925048] [2024-02-02 09:12:00,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:12:00,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:12:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:12:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:12:00,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:12:00,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34925048] [2024-02-02 09:12:00,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34925048] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:12:00,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:12:00,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:12:00,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985184537] [2024-02-02 09:12:00,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:12:00,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:12:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:12:00,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:12:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:12:00,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 185 [2024-02-02 09:12:00,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 185 transitions, 380 flow. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2024-02-02 09:12:00,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:12:00,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 185 [2024-02-02 09:12:00,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:12:03,520 INFO L124 PetriNetUnfolderBase]: 6742/14100 cut-off events. [2024-02-02 09:12:03,520 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-02-02 09:12:03,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24513 conditions, 14100 events. 6742/14100 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 114130 event pairs, 68 based on Foata normal form. 1188/13853 useless extension candidates. Maximal degree in co-relation 23857. Up to 10118 conditions per place. [2024-02-02 09:12:03,637 INFO L140 encePairwiseOnDemand]: 154/185 looper letters, 113 selfloop transitions, 2 changer transitions 0/195 dead transitions. [2024-02-02 09:12:03,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 195 transitions, 635 flow [2024-02-02 09:12:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:12:03,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:12:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2024-02-02 09:12:03,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6418918918918919 [2024-02-02 09:12:03,645 INFO L175 Difference]: Start difference. First operand has 170 places, 185 transitions, 380 flow. Second operand 4 states and 475 transitions. [2024-02-02 09:12:03,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 195 transitions, 635 flow [2024-02-02 09:12:03,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 195 transitions, 635 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-02 09:12:03,651 INFO L231 Difference]: Finished difference. Result has 156 places, 156 transitions, 326 flow [2024-02-02 09:12:03,652 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=326, PETRI_PLACES=156, PETRI_TRANSITIONS=156} [2024-02-02 09:12:03,653 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -14 predicate places. [2024-02-02 09:12:03,653 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 156 transitions, 326 flow [2024-02-02 09:12:03,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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) [2024-02-02 09:12:03,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:12:03,654 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-02-02 09:12:03,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:12:03,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-02-02 09:12:03,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:12:03,655 INFO L85 PathProgramCache]: Analyzing trace with hash 220873674, now seen corresponding path program 1 times [2024-02-02 09:12:03,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:12:03,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117971472] [2024-02-02 09:12:03,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:12:03,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:12:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:12:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-02-02 09:12:03,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:12:03,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117971472] [2024-02-02 09:12:03,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117971472] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:12:03,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:12:03,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:12:03,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103024270] [2024-02-02 09:12:03,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:12:03,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:12:03,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:12:03,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:12:03,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:12:03,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 185 [2024-02-02 09:12:03,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 156 transitions, 326 flow. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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) [2024-02-02 09:12:03,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:12:03,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 185 [2024-02-02 09:12:03,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:12:06,378 INFO L124 PetriNetUnfolderBase]: 6730/13999 cut-off events. [2024-02-02 09:12:06,378 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-02-02 09:12:06,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24406 conditions, 13999 events. 6730/13999 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 111968 event pairs, 68 based on Foata normal form. 315/12907 useless extension candidates. Maximal degree in co-relation 24390. Up to 9905 conditions per place. [2024-02-02 09:12:06,459 INFO L140 encePairwiseOnDemand]: 173/185 looper letters, 148 selfloop transitions, 2 changer transitions 0/220 dead transitions. [2024-02-02 09:12:06,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 220 transitions, 754 flow [2024-02-02 09:12:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:12:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:12:06,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 480 transitions. [2024-02-02 09:12:06,462 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-02-02 09:12:06,462 INFO L175 Difference]: Start difference. First operand has 156 places, 156 transitions, 326 flow. Second operand 4 states and 480 transitions. [2024-02-02 09:12:06,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 220 transitions, 754 flow [2024-02-02 09:12:06,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 220 transitions, 751 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:12:06,470 INFO L231 Difference]: Finished difference. Result has 147 places, 146 transitions, 307 flow [2024-02-02 09:12:06,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=307, PETRI_PLACES=147, PETRI_TRANSITIONS=146} [2024-02-02 09:12:06,472 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -23 predicate places. [2024-02-02 09:12:06,473 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 146 transitions, 307 flow [2024-02-02 09:12:06,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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) [2024-02-02 09:12:06,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:12:06,473 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-02-02 09:12:06,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:12:06,474 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-02-02 09:12:06,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:12:06,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1742889795, now seen corresponding path program 1 times [2024-02-02 09:12:06,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:12:06,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151389994] [2024-02-02 09:12:06,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:12:06,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:12:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:12:06,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:12:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:12:06,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:12:06,534 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:12:06,535 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (90 of 91 remaining) [2024-02-02 09:12:06,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 91 remaining) [2024-02-02 09:12:06,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 91 remaining) [2024-02-02 09:12:06,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 91 remaining) [2024-02-02 09:12:06,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 91 remaining) [2024-02-02 09:12:06,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 91 remaining) [2024-02-02 09:12:06,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 91 remaining) [2024-02-02 09:12:06,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 91 remaining) [2024-02-02 09:12:06,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 91 remaining) [2024-02-02 09:12:06,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 91 remaining) [2024-02-02 09:12:06,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 91 remaining) [2024-02-02 09:12:06,537 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 91 remaining) [2024-02-02 09:12:06,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 91 remaining) [2024-02-02 09:12:06,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 91 remaining) [2024-02-02 09:12:06,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 91 remaining) [2024-02-02 09:12:06,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 91 remaining) [2024-02-02 09:12:06,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 91 remaining) [2024-02-02 09:12:06,538 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (73 of 91 remaining) [2024-02-02 09:12:06,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 91 remaining) [2024-02-02 09:12:06,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 91 remaining) [2024-02-02 09:12:06,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (70 of 91 remaining) [2024-02-02 09:12:06,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 91 remaining) [2024-02-02 09:12:06,539 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 91 remaining) [2024-02-02 09:12:06,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (67 of 91 remaining) [2024-02-02 09:12:06,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 91 remaining) [2024-02-02 09:12:06,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 91 remaining) [2024-02-02 09:12:06,542 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 91 remaining) [2024-02-02 09:12:06,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 91 remaining) [2024-02-02 09:12:06,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 91 remaining) [2024-02-02 09:12:06,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 91 remaining) [2024-02-02 09:12:06,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 91 remaining) [2024-02-02 09:12:06,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 91 remaining) [2024-02-02 09:12:06,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 91 remaining) [2024-02-02 09:12:06,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 91 remaining) [2024-02-02 09:12:06,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 91 remaining) [2024-02-02 09:12:06,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 91 remaining) [2024-02-02 09:12:06,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 91 remaining) [2024-02-02 09:12:06,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 91 remaining) [2024-02-02 09:12:06,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 91 remaining) [2024-02-02 09:12:06,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 91 remaining) [2024-02-02 09:12:06,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 91 remaining) [2024-02-02 09:12:06,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 91 remaining) [2024-02-02 09:12:06,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 91 remaining) [2024-02-02 09:12:06,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 91 remaining) [2024-02-02 09:12:06,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 91 remaining) [2024-02-02 09:12:06,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 91 remaining) [2024-02-02 09:12:06,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 91 remaining) [2024-02-02 09:12:06,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (43 of 91 remaining) [2024-02-02 09:12:06,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 91 remaining) [2024-02-02 09:12:06,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 91 remaining) [2024-02-02 09:12:06,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (40 of 91 remaining) [2024-02-02 09:12:06,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 91 remaining) [2024-02-02 09:12:06,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 91 remaining) [2024-02-02 09:12:06,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (37 of 91 remaining) [2024-02-02 09:12:06,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 91 remaining) [2024-02-02 09:12:06,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 91 remaining) [2024-02-02 09:12:06,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 91 remaining) [2024-02-02 09:12:06,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 91 remaining) [2024-02-02 09:12:06,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 91 remaining) [2024-02-02 09:12:06,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 91 remaining) [2024-02-02 09:12:06,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 91 remaining) [2024-02-02 09:12:06,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 91 remaining) [2024-02-02 09:12:06,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 91 remaining) [2024-02-02 09:12:06,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 91 remaining) [2024-02-02 09:12:06,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 91 remaining) [2024-02-02 09:12:06,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 91 remaining) [2024-02-02 09:12:06,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 91 remaining) [2024-02-02 09:12:06,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 91 remaining) [2024-02-02 09:12:06,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 91 remaining) [2024-02-02 09:12:06,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 91 remaining) [2024-02-02 09:12:06,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 91 remaining) [2024-02-02 09:12:06,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 91 remaining) [2024-02-02 09:12:06,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 91 remaining) [2024-02-02 09:12:06,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 91 remaining) [2024-02-02 09:12:06,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 91 remaining) [2024-02-02 09:12:06,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 91 remaining) [2024-02-02 09:12:06,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 91 remaining) [2024-02-02 09:12:06,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (13 of 91 remaining) [2024-02-02 09:12:06,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 91 remaining) [2024-02-02 09:12:06,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 91 remaining) [2024-02-02 09:12:06,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (10 of 91 remaining) [2024-02-02 09:12:06,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 91 remaining) [2024-02-02 09:12:06,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 91 remaining) [2024-02-02 09:12:06,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (7 of 91 remaining) [2024-02-02 09:12:06,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 91 remaining) [2024-02-02 09:12:06,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 91 remaining) [2024-02-02 09:12:06,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 91 remaining) [2024-02-02 09:12:06,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 91 remaining) [2024-02-02 09:12:06,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 91 remaining) [2024-02-02 09:12:06,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 91 remaining) [2024-02-02 09:12:06,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 91 remaining) [2024-02-02 09:12:06,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:12:06,562 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-02-02 09:12:06,562 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-02-02 09:12:06,562 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-02-02 09:12:06,822 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-02 09:12:06,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 275 transitions, 568 flow [2024-02-02 09:12:06,880 INFO L124 PetriNetUnfolderBase]: 30/283 cut-off events. [2024-02-02 09:12:06,880 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-02-02 09:12:06,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 283 events. 30/283 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1311 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 270. Up to 4 conditions per place. [2024-02-02 09:12:06,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 275 transitions, 568 flow [2024-02-02 09:12:06,889 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 275 transitions, 568 flow [2024-02-02 09:12:06,890 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:12:06,890 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;@737ec5bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:12:06,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2024-02-02 09:12:06,892 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:12:06,892 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-02-02 09:12:06,892 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:12:06,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:12:06,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:12:06,893 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-02-02 09:12:06,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:12:06,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2081379148, now seen corresponding path program 1 times [2024-02-02 09:12:06,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:12:06,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825499651] [2024-02-02 09:12:06,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:12:06,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:12:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:12:06,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:12:06,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:12:06,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825499651] [2024-02-02 09:12:06,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825499651] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:12:06,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:12:06,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:12:06,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796274497] [2024-02-02 09:12:06,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:12:06,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:12:06,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:12:06,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:12:06,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:12:07,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2024-02-02 09:12:07,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 275 transitions, 568 flow. Second operand has 4 states, 4 states have (on average 126.25) internal successors, (505), 4 states have internal predecessors, (505), 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) [2024-02-02 09:12:07,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:12:07,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2024-02-02 09:12:07,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand