./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 3d25acf6 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-3d25acf-m [2024-01-30 14:15:46,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:15:47,026 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:15:47,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:15:47,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:15:47,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:15:47,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:15:47,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:15:47,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:15:47,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:15:47,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:15:47,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:15:47,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:15:47,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:15:47,054 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:15:47,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:15:47,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:15:47,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:15:47,055 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:15:47,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:15:47,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:15:47,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:15:47,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:15:47,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:15:47,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:15:47,058 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:15:47,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:15:47,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:15:47,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:15:47,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:15:47,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:15:47,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:15:47,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:15:47,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:15:47,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:15:47,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:15:47,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:15:47,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:15:47,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:15:47,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:15:47,070 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:15:47,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:15:47,071 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:15:47,071 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:15:47,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:15:47,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:15:47,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:15:47,363 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:15:47,363 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:15:47,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/08_rand_cas.i [2024-01-30 14:15:48,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:15:48,767 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:15:48,768 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i [2024-01-30 14:15:48,779 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e622840b/e9e799d1dfb548f7af5e81f47d6bd2ef/FLAG4d68f0d1d [2024-01-30 14:15:48,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e622840b/e9e799d1dfb548f7af5e81f47d6bd2ef [2024-01-30 14:15:48,796 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:15:48,796 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:15:48,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/08_rand_cas.yml/witness.yml [2024-01-30 14:15:48,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:15:48,946 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:15:48,948 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:15:48,948 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:15:48,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:15:48,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:15:48" (1/2) ... [2024-01-30 14:15:48,956 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297992c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:48, skipping insertion in model container [2024-01-30 14:15:48,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:15:48" (1/2) ... [2024-01-30 14:15:48,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f63b213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:15:48, skipping insertion in model container [2024-01-30 14:15:48,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:15:48" (2/2) ... [2024-01-30 14:15:48,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297992c2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:48, skipping insertion in model container [2024-01-30 14:15:48,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:15:48" (2/2) ... [2024-01-30 14:15:48,959 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:15:49,048 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:15:49,050 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] (-9 <= myrand) && (myrand <= 9) [2024-01-30 14:15:49,050 INFO L98 nessWitnessExtractor]: Location invariant before [L780-L780] (unsigned long )arg == 0UL [2024-01-30 14:15:49,050 INFO L98 nessWitnessExtractor]: Location invariant after [L753-L756] (1 == init) && (init == 1) [2024-01-30 14:15:49,051 INFO L98 nessWitnessExtractor]: Location invariant before [L776-L776] (unsigned long )arg == 0UL [2024-01-30 14:15:49,051 INFO L98 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)) [2024-01-30 14:15:49,052 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] calculateNext_return != 0 [2024-01-30 14:15:49,052 INFO L98 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) [2024-01-30 14:15:49,052 INFO L98 nessWitnessExtractor]: Location invariant before [L772-L772] (unsigned long )arg == 0UL [2024-01-30 14:15:49,052 INFO L98 nessWitnessExtractor]: Location invariant before [L761-L761] (-9 <= myrand) && (myrand <= 9) [2024-01-30 14:15:49,052 INFO L98 nessWitnessExtractor]: Location invariant before [L773-L773] (unsigned long )arg == 0UL [2024-01-30 14:15:49,053 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] ((((((((((10 == n) && (n == 10)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0))) && ((0LL - (long long )nexts) + (long long )read >= 0LL)) && ((long long )nexts - (long long )read >= 0LL)) && (10 == n)) && (n == 10)) && (read != 0)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) [2024-01-30 14:15:49,053 INFO L98 nessWitnessExtractor]: Location invariant before [L755-L755] (1 == init) && (init == 1) [2024-01-30 14:15:49,053 INFO L98 nessWitnessExtractor]: Location invariant before [L741-L741] (((((-9 <= nextInt_return) && (nextInt_return <= 9)) && (10 == n)) && (n == 10)) && (casret == 1)) && (nexts != 0) [2024-01-30 14:15:49,053 INFO L98 nessWitnessExtractor]: Location invariant after [L701-L705] (int )m == 1 [2024-01-30 14:15:49,053 INFO L98 nessWitnessExtractor]: Location invariant after [L711-L725] ((((0 <= *r) && (*r <= 1)) && (v == & seed)) && (u != 0)) && (*r == 0 || *r == 1) [2024-01-30 14:15:49,053 INFO L98 nessWitnessExtractor]: Location invariant before [L731-L731] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((((((((((((((4294967296LL + (long long )nexts) + (long long )read >= 0LL && (4294967296LL + (long long )casret) + (long long )read >= 0LL) && (4294967296LL + (long long )casret) + (long long )nexts >= 0LL) && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )read >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )nexts) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )read >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )nexts) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )read >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )nexts) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )read >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-30 14:15:49,054 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] (v == & seed) && (u != 0) [2024-01-30 14:15:49,054 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] (v == & seed) && (u != 0) [2024-01-30 14:15:49,054 INFO L98 nessWitnessExtractor]: Location invariant after [L757-L762] (-9 <= myrand) && (myrand <= 9) [2024-01-30 14:15:49,054 INFO L98 nessWitnessExtractor]: Location invariant before [L735-L735] (((10 == n) && (n == 10)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) [2024-01-30 14:15:49,054 INFO L98 nessWitnessExtractor]: Location invariant before [L717-L724] (v == & seed) && (u != 0) [2024-01-30 14:15:49,055 INFO L98 nessWitnessExtractor]: Location invariant before [L732-L732] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((4294967296LL + (long long )casret) + (long long )nexts >= 0LL && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-30 14:15:49,055 INFO L98 nessWitnessExtractor]: Location invariant before [L771-L771] (unsigned long )arg == 0UL [2024-01-30 14:15:49,055 INFO L98 nessWitnessExtractor]: Location invariant before [L730-L730] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((((((((((((((4294967296LL + (long long )nexts) + (long long )read >= 0LL && (4294967296LL + (long long )casret) + (long long )read >= 0LL) && (4294967296LL + (long long )casret) + (long long )nexts >= 0LL) && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )read >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )nexts) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )read >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )read >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )nexts) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )read >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )read >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )nexts) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )read >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )read >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-30 14:15:49,055 INFO L98 nessWitnessExtractor]: Location invariant before [L775-L775] (unsigned long )arg == 0UL [2024-01-30 14:15:49,055 INFO L98 nessWitnessExtractor]: Location invariant before [L769-L769] (unsigned long )arg == 0UL [2024-01-30 14:15:49,056 INFO L98 nessWitnessExtractor]: Location invariant after [L706-L710] (int )m == 0 [2024-01-30 14:15:49,056 INFO L98 nessWitnessExtractor]: Location invariant before [L766-L766] (unsigned long )arg == 0UL [2024-01-30 14:15:49,056 INFO L98 nessWitnessExtractor]: Location invariant before [L777-L777] (unsigned long )arg == 0UL [2024-01-30 14:15:49,056 INFO L98 nessWitnessExtractor]: Location invariant before [L770-L770] (unsigned long )arg == 0UL [2024-01-30 14:15:49,056 INFO L98 nessWitnessExtractor]: Location invariant before [L733-L733] ((10 == n) && (n == 10)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0) || ((((((((((((4294967296LL + (long long )casret) + (long long )nexts >= 0LL && (4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967296LL + (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nexts >= 0LL) && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL - (long long )nextInt_return) + (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nexts >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )nextInt_return) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nexts >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )nextInt_return) - (long long )nexts >= 0LL)) || ((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) && nexts != 0)) [2024-01-30 14:15:49,056 INFO L98 nessWitnessExtractor]: Location invariant before [L737-L737] ((((((((2147483647LL + (long long )casret) + (long long )nextInt_return >= 0LL) && ((2147483649LL - (long long )casret) + (long long )nextInt_return >= 0LL)) && ((2147483646LL + (long long )casret) - (long long )nextInt_return >= 0LL)) && ((2147483648LL - (long long )casret) - (long long )nextInt_return >= 0LL)) && (10 == n)) && (n == 10)) && (casret == 1)) && (nexts != 0) [2024-01-30 14:15:49,057 INFO L98 nessWitnessExtractor]: Location invariant before [L734-L734] ((((((((((10 == n) && (n == 10)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0))) && ((0LL - (long long )nexts) + (long long )read >= 0LL)) && ((long long )nexts - (long long )read >= 0LL)) && (10 == n)) && (n == 10)) && (read != 0)) && (nexts != 0)) && ((((((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0) || ((((4294967296LL + (long long )casret) + (long long )nextInt_return >= 0LL && (4294967295LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (4294967295LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (4294967294LL - (long long )casret) - (long long )nextInt_return >= 0LL)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) || (((((2147483648LL + (long long )casret) + (long long )nextInt_return >= 0LL && (2147483648LL - (long long )casret) + (long long )nextInt_return >= 0LL) && (2147483647LL + (long long )casret) - (long long )nextInt_return >= 0LL) && (2147483647LL - (long long )casret) - (long long )nextInt_return >= 0LL) && casret == 0)) [2024-01-30 14:15:49,103 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:15:49,412 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[30837,30850] [2024-01-30 14:15:49,418 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[31185,31198] [2024-01-30 14:15:49,419 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/08_rand_cas.i[31448,31461] [2024-01-30 14:15:49,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:15:49,431 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-01-30 14:15:49,518 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_atomic_acquire() { assume_abort_if_not(m==0); m = 1; } with a witness entry [2024-01-30 14:15:49,519 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 [2024-01-30 14:15:49,527 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 [2024-01-30 14:15:49,611 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 [2024-01-30 14:15:49,626 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 [2024-01-30 14:15:49,670 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 [2024-01-30 14:15:49,671 WARN L424 MainDispatcher]: Unable to annotate inline void PseudoRandomUsingAtomic_constructor(int init) { seed = init; } with a witness entry [2024-01-30 14:15:49,671 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 [2024-01-30 14:15:49,672 WARN L424 MainDispatcher]: Unable to annotate ; with a witness entry [2024-01-30 14:15:49,672 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 [2024-01-30 14:15:49,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:15:49,714 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:15:49,715 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49 WrapperNode [2024-01-30 14:15:49,716 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:15:49,717 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:15:49,717 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:15:49,718 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:15:49,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,817 INFO L138 Inliner]: procedures = 178, calls = 233, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 775 [2024-01-30 14:15:49,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:15:49,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:15:49,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:15:49,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:15:49,828 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,834 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,852 INFO L175 MemorySlicer]: Split 207 memory accesses to 4 slices as follows [2, 198, 1, 6]. 96 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 0, 1]. The 5 writes are split as follows [0, 2, 1, 2]. [2024-01-30 14:15:49,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,875 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,878 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:15:49,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:15:49,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:15:49,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:15:49,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (1/1) ... [2024-01-30 14:15:49,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:15:49,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:15:50,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-30 14:15:50,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-30 14:15:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:15:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:15:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:15:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:15:50,045 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-30 14:15:50,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-30 14:15:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:15:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:15:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:15:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:15:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:15:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:15:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:15:50,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:15:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:15:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:15:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:15:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:15:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:15:50,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:15:50,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:15:50,049 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:15:50,217 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:15:50,219 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:15:51,102 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:15:51,103 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:15:52,235 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:15:52,236 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-30 14:15:52,237 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:15:52 BoogieIcfgContainer [2024-01-30 14:15:52,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:15:52,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:15:52,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:15:52,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:15:52,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:15:48" (1/4) ... [2024-01-30 14:15:52,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8f2da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:15:52, skipping insertion in model container [2024-01-30 14:15:52,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:15:48" (2/4) ... [2024-01-30 14:15:52,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8f2da9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:15:52, skipping insertion in model container [2024-01-30 14:15:52,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:15:49" (3/4) ... [2024-01-30 14:15:52,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8f2da9 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:15:52, skipping insertion in model container [2024-01-30 14:15:52,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:15:52" (4/4) ... [2024-01-30 14:15:52,247 INFO L112 eAbstractionObserver]: Analyzing ICFG 08_rand_cas.i [2024-01-30 14:15:52,264 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:15:52,264 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-01-30 14:15:52,264 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:15:52,449 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-30 14:15:52,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 95 transitions, 194 flow [2024-01-30 14:15:52,548 INFO L124 PetriNetUnfolderBase]: 10/97 cut-off events. [2024-01-30 14:15:52,548 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:15:52,552 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. [2024-01-30 14:15:52,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 95 transitions, 194 flow [2024-01-30 14:15:52,556 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 95 transitions, 194 flow [2024-01-30 14:15:52,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:15:52,578 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;@6adde4f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:15:52,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-01-30 14:15:52,582 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:15:52,582 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-30 14:15:52,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:15:52,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:52,583 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:15:52,584 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:15:52,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:52,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1642224942, now seen corresponding path program 1 times [2024-01-30 14:15:52,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:52,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003227355] [2024-01-30 14:15:52,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:52,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:52,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:52,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:52,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003227355] [2024-01-30 14:15:52,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003227355] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:52,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:52,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:52,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941871836] [2024-01-30 14:15:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:52,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:52,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:53,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:53,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:53,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 95 [2024-01-30 14:15:53,068 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) [2024-01-30 14:15:53,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:53,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 95 [2024-01-30 14:15:53,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:53,251 INFO L124 PetriNetUnfolderBase]: 82/286 cut-off events. [2024-01-30 14:15:53,251 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:15:53,252 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. [2024-01-30 14:15:53,255 INFO L140 encePairwiseOnDemand]: 73/95 looper letters, 41 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2024-01-30 14:15:53,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 78 transitions, 246 flow [2024-01-30 14:15:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:53,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-01-30 14:15:53,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5394736842105263 [2024-01-30 14:15:53,271 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 194 flow. Second operand 4 states and 205 transitions. [2024-01-30 14:15:53,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 78 transitions, 246 flow [2024-01-30 14:15:53,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-30 14:15:53,279 INFO L231 Difference]: Finished difference. Result has 77 places, 75 transitions, 158 flow [2024-01-30 14:15:53,281 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} [2024-01-30 14:15:53,285 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -11 predicate places. [2024-01-30 14:15:53,287 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 75 transitions, 158 flow [2024-01-30 14:15:53,287 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) [2024-01-30 14:15:53,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:53,288 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-01-30 14:15:53,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:15:53,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:15:53,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:53,294 INFO L85 PathProgramCache]: Analyzing trace with hash -630673721, now seen corresponding path program 1 times [2024-01-30 14:15:53,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:53,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055285869] [2024-01-30 14:15:53,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:53,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:15:53,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:15:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:15:53,363 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:15:53,363 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:15:53,365 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-01-30 14:15:53,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 61 remaining) [2024-01-30 14:15:53,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 61 remaining) [2024-01-30 14:15:53,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 61 remaining) [2024-01-30 14:15:53,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 61 remaining) [2024-01-30 14:15:53,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 61 remaining) [2024-01-30 14:15:53,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 61 remaining) [2024-01-30 14:15:53,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 61 remaining) [2024-01-30 14:15:53,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 61 remaining) [2024-01-30 14:15:53,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 61 remaining) [2024-01-30 14:15:53,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 61 remaining) [2024-01-30 14:15:53,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 61 remaining) [2024-01-30 14:15:53,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 61 remaining) [2024-01-30 14:15:53,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 61 remaining) [2024-01-30 14:15:53,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 61 remaining) [2024-01-30 14:15:53,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 61 remaining) [2024-01-30 14:15:53,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 61 remaining) [2024-01-30 14:15:53,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (43 of 61 remaining) [2024-01-30 14:15:53,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 61 remaining) [2024-01-30 14:15:53,374 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 61 remaining) [2024-01-30 14:15:53,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (40 of 61 remaining) [2024-01-30 14:15:53,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 61 remaining) [2024-01-30 14:15:53,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 61 remaining) [2024-01-30 14:15:53,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (37 of 61 remaining) [2024-01-30 14:15:53,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 61 remaining) [2024-01-30 14:15:53,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 61 remaining) [2024-01-30 14:15:53,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 61 remaining) [2024-01-30 14:15:53,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 61 remaining) [2024-01-30 14:15:53,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 61 remaining) [2024-01-30 14:15:53,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 61 remaining) [2024-01-30 14:15:53,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 61 remaining) [2024-01-30 14:15:53,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 61 remaining) [2024-01-30 14:15:53,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 61 remaining) [2024-01-30 14:15:53,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 61 remaining) [2024-01-30 14:15:53,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 61 remaining) [2024-01-30 14:15:53,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 61 remaining) [2024-01-30 14:15:53,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 61 remaining) [2024-01-30 14:15:53,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 61 remaining) [2024-01-30 14:15:53,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 61 remaining) [2024-01-30 14:15:53,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 61 remaining) [2024-01-30 14:15:53,381 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 61 remaining) [2024-01-30 14:15:53,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 61 remaining) [2024-01-30 14:15:53,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 61 remaining) [2024-01-30 14:15:53,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 61 remaining) [2024-01-30 14:15:53,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 61 remaining) [2024-01-30 14:15:53,382 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 61 remaining) [2024-01-30 14:15:53,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 61 remaining) [2024-01-30 14:15:53,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (13 of 61 remaining) [2024-01-30 14:15:53,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 61 remaining) [2024-01-30 14:15:53,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 61 remaining) [2024-01-30 14:15:53,383 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (10 of 61 remaining) [2024-01-30 14:15:53,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 61 remaining) [2024-01-30 14:15:53,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 61 remaining) [2024-01-30 14:15:53,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (7 of 61 remaining) [2024-01-30 14:15:53,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 61 remaining) [2024-01-30 14:15:53,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 61 remaining) [2024-01-30 14:15:53,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 61 remaining) [2024-01-30 14:15:53,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 61 remaining) [2024-01-30 14:15:53,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 61 remaining) [2024-01-30 14:15:53,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 61 remaining) [2024-01-30 14:15:53,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 61 remaining) [2024-01-30 14:15:53,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:15:53,389 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-30 14:15:53,393 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-30 14:15:53,393 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-30 14:15:53,657 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-30 14:15:53,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 185 transitions, 380 flow [2024-01-30 14:15:53,722 INFO L124 PetriNetUnfolderBase]: 20/190 cut-off events. [2024-01-30 14:15:53,723 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-30 14:15:53,728 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. [2024-01-30 14:15:53,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 185 transitions, 380 flow [2024-01-30 14:15:53,733 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 185 transitions, 380 flow [2024-01-30 14:15:53,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:15:53,736 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;@6adde4f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:15:53,736 INFO L358 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2024-01-30 14:15:53,738 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:15:53,738 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-01-30 14:15:53,738 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:15:53,738 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:53,738 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:15:53,739 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-01-30 14:15:53,739 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:53,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1818859744, now seen corresponding path program 1 times [2024-01-30 14:15:53,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:53,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745588795] [2024-01-30 14:15:53,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:53,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:53,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:15:53,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:53,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745588795] [2024-01-30 14:15:53,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745588795] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:53,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:53,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:53,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540841263] [2024-01-30 14:15:53,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:53,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:53,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:53,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:53,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:53,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 185 [2024-01-30 14:15:53,872 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) [2024-01-30 14:15:53,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:53,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 185 [2024-01-30 14:15:53,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:56,701 INFO L124 PetriNetUnfolderBase]: 6742/14100 cut-off events. [2024-01-30 14:15:56,701 INFO L125 PetriNetUnfolderBase]: For 108/108 co-relation queries the response was YES. [2024-01-30 14:15:56,730 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. [2024-01-30 14:15:56,803 INFO L140 encePairwiseOnDemand]: 154/185 looper letters, 113 selfloop transitions, 2 changer transitions 0/195 dead transitions. [2024-01-30 14:15:56,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 195 transitions, 635 flow [2024-01-30 14:15:56,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:56,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:56,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 475 transitions. [2024-01-30 14:15:56,811 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6418918918918919 [2024-01-30 14:15:56,811 INFO L175 Difference]: Start difference. First operand has 170 places, 185 transitions, 380 flow. Second operand 4 states and 475 transitions. [2024-01-30 14:15:56,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 195 transitions, 635 flow [2024-01-30 14:15:56,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 195 transitions, 635 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-30 14:15:56,817 INFO L231 Difference]: Finished difference. Result has 156 places, 156 transitions, 326 flow [2024-01-30 14:15:56,817 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} [2024-01-30 14:15:56,818 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -14 predicate places. [2024-01-30 14:15:56,818 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 156 transitions, 326 flow [2024-01-30 14:15:56,819 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) [2024-01-30 14:15:56,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:56,819 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-01-30 14:15:56,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:15:56,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-01-30 14:15:56,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:56,820 INFO L85 PathProgramCache]: Analyzing trace with hash 220873674, now seen corresponding path program 1 times [2024-01-30 14:15:56,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:56,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677608707] [2024-01-30 14:15:56,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:56,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:15:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-01-30 14:15:56,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:15:56,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677608707] [2024-01-30 14:15:56,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677608707] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:15:56,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:15:56,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:15:56,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517277048] [2024-01-30 14:15:56,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:15:56,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:15:56,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:15:56,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:15:56,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:15:56,941 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 185 [2024-01-30 14:15:56,942 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) [2024-01-30 14:15:56,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:15:56,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 185 [2024-01-30 14:15:56,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:15:59,623 INFO L124 PetriNetUnfolderBase]: 6730/13999 cut-off events. [2024-01-30 14:15:59,623 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-01-30 14:15:59,650 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. [2024-01-30 14:15:59,706 INFO L140 encePairwiseOnDemand]: 173/185 looper letters, 148 selfloop transitions, 2 changer transitions 0/220 dead transitions. [2024-01-30 14:15:59,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 220 transitions, 754 flow [2024-01-30 14:15:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:15:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:15:59,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 480 transitions. [2024-01-30 14:15:59,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-01-30 14:15:59,709 INFO L175 Difference]: Start difference. First operand has 156 places, 156 transitions, 326 flow. Second operand 4 states and 480 transitions. [2024-01-30 14:15:59,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 220 transitions, 754 flow [2024-01-30 14:15:59,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 220 transitions, 751 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:15:59,715 INFO L231 Difference]: Finished difference. Result has 147 places, 146 transitions, 307 flow [2024-01-30 14:15:59,715 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} [2024-01-30 14:15:59,716 INFO L281 CegarLoopForPetriNet]: 170 programPoint places, -23 predicate places. [2024-01-30 14:15:59,716 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 146 transitions, 307 flow [2024-01-30 14:15:59,716 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) [2024-01-30 14:15:59,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:15:59,717 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1] [2024-01-30 14:15:59,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:15:59,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 88 more)] === [2024-01-30 14:15:59,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:15:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1742889795, now seen corresponding path program 1 times [2024-01-30 14:15:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:15:59,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413670281] [2024-01-30 14:15:59,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:15:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:15:59,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:15:59,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:15:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:15:59,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:15:59,770 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:15:59,770 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (90 of 91 remaining) [2024-01-30 14:15:59,770 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 91 remaining) [2024-01-30 14:15:59,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 91 remaining) [2024-01-30 14:15:59,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 91 remaining) [2024-01-30 14:15:59,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 91 remaining) [2024-01-30 14:15:59,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 91 remaining) [2024-01-30 14:15:59,771 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 91 remaining) [2024-01-30 14:15:59,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 91 remaining) [2024-01-30 14:15:59,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 91 remaining) [2024-01-30 14:15:59,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 91 remaining) [2024-01-30 14:15:59,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 91 remaining) [2024-01-30 14:15:59,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 91 remaining) [2024-01-30 14:15:59,772 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 91 remaining) [2024-01-30 14:15:59,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 91 remaining) [2024-01-30 14:15:59,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 91 remaining) [2024-01-30 14:15:59,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 91 remaining) [2024-01-30 14:15:59,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 91 remaining) [2024-01-30 14:15:59,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (73 of 91 remaining) [2024-01-30 14:15:59,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 91 remaining) [2024-01-30 14:15:59,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 91 remaining) [2024-01-30 14:15:59,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (70 of 91 remaining) [2024-01-30 14:15:59,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 91 remaining) [2024-01-30 14:15:59,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 91 remaining) [2024-01-30 14:15:59,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (67 of 91 remaining) [2024-01-30 14:15:59,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 91 remaining) [2024-01-30 14:15:59,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 91 remaining) [2024-01-30 14:15:59,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 91 remaining) [2024-01-30 14:15:59,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 91 remaining) [2024-01-30 14:15:59,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 91 remaining) [2024-01-30 14:15:59,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 91 remaining) [2024-01-30 14:15:59,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 91 remaining) [2024-01-30 14:15:59,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 91 remaining) [2024-01-30 14:15:59,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 91 remaining) [2024-01-30 14:15:59,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 91 remaining) [2024-01-30 14:15:59,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 91 remaining) [2024-01-30 14:15:59,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 91 remaining) [2024-01-30 14:15:59,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 91 remaining) [2024-01-30 14:15:59,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 91 remaining) [2024-01-30 14:15:59,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 91 remaining) [2024-01-30 14:15:59,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 91 remaining) [2024-01-30 14:15:59,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 91 remaining) [2024-01-30 14:15:59,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 91 remaining) [2024-01-30 14:15:59,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 91 remaining) [2024-01-30 14:15:59,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 91 remaining) [2024-01-30 14:15:59,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 91 remaining) [2024-01-30 14:15:59,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 91 remaining) [2024-01-30 14:15:59,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 91 remaining) [2024-01-30 14:15:59,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (43 of 91 remaining) [2024-01-30 14:15:59,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 91 remaining) [2024-01-30 14:15:59,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 91 remaining) [2024-01-30 14:15:59,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (40 of 91 remaining) [2024-01-30 14:15:59,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 91 remaining) [2024-01-30 14:15:59,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 91 remaining) [2024-01-30 14:15:59,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (37 of 91 remaining) [2024-01-30 14:15:59,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 91 remaining) [2024-01-30 14:15:59,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 91 remaining) [2024-01-30 14:15:59,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 91 remaining) [2024-01-30 14:15:59,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 91 remaining) [2024-01-30 14:15:59,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 91 remaining) [2024-01-30 14:15:59,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 91 remaining) [2024-01-30 14:15:59,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 91 remaining) [2024-01-30 14:15:59,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 91 remaining) [2024-01-30 14:15:59,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 91 remaining) [2024-01-30 14:15:59,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 91 remaining) [2024-01-30 14:15:59,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 91 remaining) [2024-01-30 14:15:59,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 91 remaining) [2024-01-30 14:15:59,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 91 remaining) [2024-01-30 14:15:59,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 91 remaining) [2024-01-30 14:15:59,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 91 remaining) [2024-01-30 14:15:59,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 91 remaining) [2024-01-30 14:15:59,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 91 remaining) [2024-01-30 14:15:59,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 91 remaining) [2024-01-30 14:15:59,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 91 remaining) [2024-01-30 14:15:59,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 91 remaining) [2024-01-30 14:15:59,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 91 remaining) [2024-01-30 14:15:59,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 91 remaining) [2024-01-30 14:15:59,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 91 remaining) [2024-01-30 14:15:59,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (13 of 91 remaining) [2024-01-30 14:15:59,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 91 remaining) [2024-01-30 14:15:59,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 91 remaining) [2024-01-30 14:15:59,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONERROR_FUNCTION (10 of 91 remaining) [2024-01-30 14:15:59,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 91 remaining) [2024-01-30 14:15:59,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 91 remaining) [2024-01-30 14:15:59,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONERROR_FUNCTION (7 of 91 remaining) [2024-01-30 14:15:59,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 91 remaining) [2024-01-30 14:15:59,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 91 remaining) [2024-01-30 14:15:59,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 91 remaining) [2024-01-30 14:15:59,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 91 remaining) [2024-01-30 14:15:59,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 91 remaining) [2024-01-30 14:15:59,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 91 remaining) [2024-01-30 14:15:59,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 91 remaining) [2024-01-30 14:15:59,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:15:59,786 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-01-30 14:15:59,787 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-30 14:15:59,787 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-01-30 14:16:00,042 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-30 14:16:00,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 275 transitions, 568 flow [2024-01-30 14:16:00,103 INFO L124 PetriNetUnfolderBase]: 30/283 cut-off events. [2024-01-30 14:16:00,103 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-30 14:16:00,108 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. [2024-01-30 14:16:00,108 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 275 transitions, 568 flow [2024-01-30 14:16:00,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 275 transitions, 568 flow [2024-01-30 14:16:00,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:16:00,117 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;@6adde4f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:16:00,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 121 error locations. [2024-01-30 14:16:00,119 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:16:00,119 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-01-30 14:16:00,119 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:16:00,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:16:00,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:16:00,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 118 more)] === [2024-01-30 14:16:00,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:16:00,120 INFO L85 PathProgramCache]: Analyzing trace with hash 2081379148, now seen corresponding path program 1 times [2024-01-30 14:16:00,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:16:00,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923435680] [2024-01-30 14:16:00,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:16:00,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:16:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:16:00,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:16:00,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:16:00,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923435680] [2024-01-30 14:16:00,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923435680] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:16:00,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:16:00,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:16:00,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355611019] [2024-01-30 14:16:00,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:16:00,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:16:00,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:16:00,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:16:00,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:16:00,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2024-01-30 14:16:00,233 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) [2024-01-30 14:16:00,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:16:00,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2024-01-30 14:16:00,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand