./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/36-apron_21-traces-cluster-based_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d8006e4b 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/goblint-regression/36-apron_21-traces-cluster-based_true.i ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/36-apron_21-traces-cluster-based_true.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-d8006e4-m [2024-02-05 10:31:34,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-05 10:31:35,042 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-05 10:31:35,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-05 10:31:35,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-05 10:31:35,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-05 10:31:35,071 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-05 10:31:35,071 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-05 10:31:35,072 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-05 10:31:35,075 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-05 10:31:35,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-05 10:31:35,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-05 10:31:35,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-05 10:31:35,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-05 10:31:35,078 INFO L153 SettingsManager]: * Use SBE=true [2024-02-05 10:31:35,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-05 10:31:35,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-05 10:31:35,079 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-05 10:31:35,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-05 10:31:35,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-05 10:31:35,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-05 10:31:35,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-05 10:31:35,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-05 10:31:35,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-05 10:31:35,081 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-05 10:31:35,081 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-05 10:31:35,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-05 10:31:35,082 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-05 10:31:35,082 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-05 10:31:35,083 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-05 10:31:35,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-05 10:31:35,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-05 10:31:35,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:31:35,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-05 10:31:35,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-05 10:31:35,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-05 10:31:35,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-05 10:31:35,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-05 10:31:35,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-05 10:31:35,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-05 10:31:35,086 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-05 10:31:35,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-05 10:31:35,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-05 10:31:35,086 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-05 10:31:35,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-05 10:31:35,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-05 10:31:35,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-05 10:31:35,346 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-05 10:31:35,346 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-05 10:31:35,347 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/36-apron_21-traces-cluster-based_true.yml/witness.yml [2024-02-05 10:31:35,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-05 10:31:35,487 INFO L274 PluginConnector]: CDTParser initialized [2024-02-05 10:31:35,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2024-02-05 10:31:36,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-05 10:31:36,800 INFO L384 CDTParser]: Found 1 translation units. [2024-02-05 10:31:36,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i [2024-02-05 10:31:36,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed38d848/a681462be7a44e9c92050407c7f84d01/FLAG7c094d72d [2024-02-05 10:31:36,830 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed38d848/a681462be7a44e9c92050407c7f84d01 [2024-02-05 10:31:36,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-05 10:31:36,831 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-05 10:31:36,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-05 10:31:36,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-05 10:31:36,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-05 10:31:36,838 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:31:35" (1/2) ... [2024-02-05 10:31:36,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b85192f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:36, skipping insertion in model container [2024-02-05 10:31:36,839 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:31:35" (1/2) ... [2024-02-05 10:31:36,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f94779c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:31:36, skipping insertion in model container [2024-02-05 10:31:36,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:31:36" (2/2) ... [2024-02-05 10:31:36,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b85192f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:36, skipping insertion in model container [2024-02-05 10:31:36,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:31:36" (2/2) ... [2024-02-05 10:31:36,841 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-05 10:31:36,962 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-05 10:31:36,963 INFO L101 nessWitnessExtractor]: Location invariant before [L718-L718] ((((-1016 <= h) && (-1016 <= y)) && (-999 <= g)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,963 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-02-05 10:31:36,963 INFO L101 nessWitnessExtractor]: Location invariant before [L717-L717] (((-1016 <= h) && (-999 <= g)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,963 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] (((-1016 <= h) && (-999 <= g)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,963 INFO L101 nessWitnessExtractor]: Location invariant before [L733-L733] (((-1016 <= h) && (-1016 <= y)) && (-999 <= g)) && (-999 <= x) [2024-02-05 10:31:36,964 INFO L101 nessWitnessExtractor]: Location invariant before [L712-L712] (((((4294967296LL + (long long )x) + (long long )y >= 0LL) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967294LL - (long long )x) - (long long )y >= 0LL)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,964 INFO L101 nessWitnessExtractor]: Location invariant before [L696-L696] (((-999 <= g) && (-999 <= h)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,964 INFO L101 nessWitnessExtractor]: Location invariant before [L715-L715] ((-1016 <= h) && (-999 <= g)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,964 INFO L101 nessWitnessExtractor]: Location invariant before [L707-L707] ((((-1016 <= h) && (-1016 <= y)) && (-999 <= g)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,964 INFO L101 nessWitnessExtractor]: Location invariant before [L713-L713] (unsigned long )arg == 0UL [2024-02-05 10:31:36,964 INFO L101 nessWitnessExtractor]: Location invariant before [L716-L716] ((-1016 <= h) && (-999 <= g)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,964 INFO L101 nessWitnessExtractor]: Location invariant before [L734-L734] (((-1016 <= h) && (-1016 <= y)) && (-999 <= g)) && (-999 <= x) [2024-02-05 10:31:36,964 INFO L101 nessWitnessExtractor]: Location invariant before [L731-L731] (-1016 <= h) && (-999 <= g) [2024-02-05 10:31:36,965 INFO L101 nessWitnessExtractor]: Location invariant after [L713-L713] (unsigned long )arg == 0UL [2024-02-05 10:31:36,965 INFO L101 nessWitnessExtractor]: Location invariant before [L727-L727] (g == 42) && (h == 42) [2024-02-05 10:31:36,965 INFO L101 nessWitnessExtractor]: Location invariant before [L721-L721] ((-1016 <= y) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,965 INFO L101 nessWitnessExtractor]: Location invariant after [L724-L724] ((((((4294967296LL + (long long )x) + (long long )y >= 0LL) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967294LL - (long long )x) - (long long )y >= 0LL)) && (g == 42)) && (h == 42) [2024-02-05 10:31:36,965 INFO L101 nessWitnessExtractor]: Location invariant before [L702-L702] (((((4294967296LL + (long long )x) + (long long )y >= 0LL) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967294LL - (long long )x) - (long long )y >= 0LL)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,965 INFO L101 nessWitnessExtractor]: Location invariant before [L732-L732] ((-1016 <= h) && (-999 <= g)) && (-999 <= x) [2024-02-05 10:31:36,965 INFO L101 nessWitnessExtractor]: Location invariant before [L694-L694] ((((-1016 <= h) && (-999 <= g)) && (-999 <= x)) && (h <= 2147483630)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,966 INFO L101 nessWitnessExtractor]: Location invariant before [L720-L720] ((-1016 <= y) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,966 INFO L101 nessWitnessExtractor]: Location invariant before [L705-L705] ((-1016 <= h) && (-999 <= g)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,966 INFO L101 nessWitnessExtractor]: Location invariant before [L697-L697] (((-999 <= g) && (-999 <= h)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,966 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] (((-1016 <= h) && (-999 <= g)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,966 INFO L101 nessWitnessExtractor]: Location invariant before [L736-L736] (((-1016 <= h) && (-1016 <= y)) && (-999 <= g)) && (-999 <= x) [2024-02-05 10:31:36,967 INFO L101 nessWitnessExtractor]: Location invariant after [L725-L725] (g == 42) && (h == 42) [2024-02-05 10:31:36,967 INFO L101 nessWitnessExtractor]: Location invariant after [L703-L703] (unsigned long )arg == 0UL [2024-02-05 10:31:36,967 INFO L101 nessWitnessExtractor]: Location invariant before [L709-L709] ((-1016 <= y) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,967 INFO L101 nessWitnessExtractor]: Location invariant before [L692-L692] (((-1016 <= h) && (-999 <= g)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,967 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (-999 <= x) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,967 INFO L101 nessWitnessExtractor]: Location invariant before [L714-L714] (unsigned long )arg == 0UL [2024-02-05 10:31:36,967 INFO L101 nessWitnessExtractor]: Location invariant before [L724-L724] ((((((4294967296LL + (long long )x) + (long long )y >= 0LL) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967294LL - (long long )x) - (long long )y >= 0LL)) && (g == 42)) && (h == 42) [2024-02-05 10:31:36,967 INFO L101 nessWitnessExtractor]: Location invariant after [L687-L687] (unsigned long )arg == 0UL [2024-02-05 10:31:36,968 INFO L101 nessWitnessExtractor]: Location invariant before [L699-L699] (unsigned long )arg == 0UL [2024-02-05 10:31:36,968 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-02-05 10:31:36,968 INFO L101 nessWitnessExtractor]: Location invariant before [L695-L695] ((((-1016 <= h) && (-999 <= g)) && (-999 <= x)) && (h <= 2147483630)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,969 INFO L101 nessWitnessExtractor]: Location invariant before [L738-L738] (-1016 <= y) && (-999 <= x) [2024-02-05 10:31:36,969 INFO L101 nessWitnessExtractor]: Location invariant before [L725-L725] (g == 42) && (h == 42) [2024-02-05 10:31:36,970 INFO L101 nessWitnessExtractor]: Location invariant before [L735-L735] (((-1016 <= h) && (-1016 <= y)) && (-999 <= g)) && (-999 <= x) [2024-02-05 10:31:36,971 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] ((((-1016 <= h) && (-999 <= g)) && (-999 <= x)) && (h <= 2147483630)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,971 INFO L101 nessWitnessExtractor]: Location invariant before [L737-L737] (-1016 <= y) && (-999 <= x) [2024-02-05 10:31:36,971 INFO L101 nessWitnessExtractor]: Location invariant before [L719-L719] ((((-1016 <= h) && (-1016 <= y)) && (-999 <= g)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,971 INFO L101 nessWitnessExtractor]: Location invariant before [L708-L708] ((-1016 <= y) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,971 INFO L101 nessWitnessExtractor]: Location invariant before [L706-L706] (((-1016 <= h) && (-999 <= g)) && (-999 <= x)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,972 INFO L101 nessWitnessExtractor]: Location invariant after [L702-L702] (((((4294967296LL + (long long )x) + (long long )y >= 0LL) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967294LL - (long long )x) - (long long )y >= 0LL)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,972 INFO L101 nessWitnessExtractor]: Location invariant before [L703-L703] (unsigned long )arg == 0UL [2024-02-05 10:31:36,972 INFO L101 nessWitnessExtractor]: Location invariant after [L712-L712] (((((4294967296LL + (long long )x) + (long long )y >= 0LL) && ((4294967295LL - (long long )x) + (long long )y >= 0LL)) && ((4294967295LL + (long long )x) - (long long )y >= 0LL)) && ((4294967294LL - (long long )x) - (long long )y >= 0LL)) && ((unsigned long )arg == 0UL) [2024-02-05 10:31:36,972 INFO L101 nessWitnessExtractor]: Location invariant before [L704-L704] (unsigned long )arg == 0UL [2024-02-05 10:31:37,011 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-05 10:31:37,184 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2024-02-05 10:31:37,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:31:37,328 INFO L204 MainTranslator]: Completed pre-run [2024-02-05 10:31:37,337 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_21-traces-cluster-based_true.i[1092,1105] [2024-02-05 10:31:37,350 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-05 10:31:37,350 WARN L424 MainDispatcher]: Unable to annotate x = __VERIFIER_nondet_int() 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 Start Parsing Local [2024-02-05 10:31:37,393 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-05 10:31:37,394 WARN L424 MainDispatcher]: Unable to annotate x = __VERIFIER_nondet_int() with a witness entry [2024-02-05 10:31:37,394 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-05 10:31:37,395 WARN L424 MainDispatcher]: Unable to annotate y = __VERIFIER_nondet_int() with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-05 10:31:37,410 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-05 10:31:37,410 WARN L424 MainDispatcher]: Unable to annotate x = __VERIFIER_nondet_int() with a witness entry [2024-02-05 10:31:37,414 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-05 10:31:37,414 WARN L424 MainDispatcher]: Unable to annotate y = __VERIFIER_nondet_int() 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 [2024-02-05 10:31:37,421 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-05 10:31:37,421 WARN L424 MainDispatcher]: Unable to annotate x = __VERIFIER_nondet_int() with a witness entry [2024-02-05 10:31:37,421 WARN L424 MainDispatcher]: Unable to annotate int with a witness entry [2024-02-05 10:31:37,421 WARN L424 MainDispatcher]: Unable to annotate y = __VERIFIER_nondet_int() 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 [2024-02-05 10:31:37,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:31:37,460 INFO L208 MainTranslator]: Completed translation [2024-02-05 10:31:37,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37 WrapperNode [2024-02-05 10:31:37,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-05 10:31:37,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-05 10:31:37,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-05 10:31:37,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-05 10:31:37,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,581 INFO L138 Inliner]: procedures = 166, calls = 53, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 172 [2024-02-05 10:31:37,583 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-05 10:31:37,584 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-05 10:31:37,584 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-05 10:31:37,584 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-05 10:31:37,593 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,625 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 5, 5, 1, 1, 1]. 33 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0, 0, 0]. The 3 writes are split as follows [0, 0, 0, 1, 1, 1]. [2024-02-05 10:31:37,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,627 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,647 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-05 10:31:37,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-05 10:31:37,663 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-05 10:31:37,663 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-05 10:31:37,664 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (1/1) ... [2024-02-05 10:31:37,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:31:37,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-05 10:31:37,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-05 10:31:37,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-05 10:31:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-02-05 10:31:37,743 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-02-05 10:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-05 10:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-05 10:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-05 10:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-05 10:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-05 10:31:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-05 10:31:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-05 10:31:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-05 10:31:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-05 10:31:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2024-02-05 10:31:37,744 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2024-02-05 10:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-05 10:31:37,745 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-05 10:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-05 10:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-05 10:31:37,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-05 10:31:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-05 10:31:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-05 10:31:37,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-05 10:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-05 10:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-05 10:31:37,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-05 10:31:37,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-05 10:31:37,748 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-05 10:31:37,889 INFO L244 CfgBuilder]: Building ICFG [2024-02-05 10:31:37,891 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-05 10:31:38,192 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-05 10:31:38,192 INFO L293 CfgBuilder]: Performing block encoding [2024-02-05 10:31:38,320 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-05 10:31:38,320 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-05 10:31:38,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:31:38 BoogieIcfgContainer [2024-02-05 10:31:38,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-05 10:31:38,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-05 10:31:38,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-05 10:31:38,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-05 10:31:38,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:31:35" (1/4) ... [2024-02-05 10:31:38,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673ecfb2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:31:38, skipping insertion in model container [2024-02-05 10:31:38,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:31:36" (2/4) ... [2024-02-05 10:31:38,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673ecfb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:31:38, skipping insertion in model container [2024-02-05 10:31:38,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:31:37" (3/4) ... [2024-02-05 10:31:38,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@673ecfb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:31:38, skipping insertion in model container [2024-02-05 10:31:38,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:31:38" (4/4) ... [2024-02-05 10:31:38,327 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_21-traces-cluster-based_true.i [2024-02-05 10:31:38,341 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-05 10:31:38,342 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2024-02-05 10:31:38,342 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-05 10:31:38,406 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-02-05 10:31:38,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 135 transitions, 282 flow [2024-02-05 10:31:38,466 INFO L124 PetriNetUnfolderBase]: 5/132 cut-off events. [2024-02-05 10:31:38,466 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:31:38,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 132 events. 5/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 455 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 132. Up to 2 conditions per place. [2024-02-05 10:31:38,471 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 135 transitions, 282 flow [2024-02-05 10:31:38,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 132 transitions, 273 flow [2024-02-05 10:31:38,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-05 10:31:38,487 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;@721d939f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-05 10:31:38,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2024-02-05 10:31:38,489 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-05 10:31:38,490 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-05 10:31:38,490 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:31:38,490 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:31:38,491 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-05 10:31:38,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-02-05 10:31:38,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:31:38,495 INFO L85 PathProgramCache]: Analyzing trace with hash 16051, now seen corresponding path program 1 times [2024-02-05 10:31:38,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:31:38,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964051527] [2024-02-05 10:31:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:31:38,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:31:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:31:38,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:31:38,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:31:38,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964051527] [2024-02-05 10:31:38,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964051527] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:31:38,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:31:38,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-05 10:31:38,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136439139] [2024-02-05 10:31:38,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:31:38,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:31:38,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:31:38,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:31:38,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:31:38,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 135 [2024-02-05 10:31:38,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 132 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:31:38,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:31:38,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 135 [2024-02-05 10:31:38,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:31:47,303 INFO L124 PetriNetUnfolderBase]: 46805/94352 cut-off events. [2024-02-05 10:31:47,303 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-02-05 10:31:47,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159209 conditions, 94352 events. 46805/94352 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 2146. Compared 1043741 event pairs, 17077 based on Foata normal form. 5950/90681 useless extension candidates. Maximal degree in co-relation 159196. Up to 41670 conditions per place. [2024-02-05 10:31:48,263 INFO L140 encePairwiseOnDemand]: 127/135 looper letters, 82 selfloop transitions, 2 changer transitions 0/162 dead transitions. [2024-02-05 10:31:48,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 162 transitions, 507 flow [2024-02-05 10:31:48,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:31:48,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:31:48,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 337 transitions. [2024-02-05 10:31:48,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8320987654320988 [2024-02-05 10:31:48,281 INFO L175 Difference]: Start difference. First operand has 137 places, 132 transitions, 273 flow. Second operand 3 states and 337 transitions. [2024-02-05 10:31:48,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 162 transitions, 507 flow [2024-02-05 10:31:48,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 162 transitions, 502 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-05 10:31:48,295 INFO L231 Difference]: Finished difference. Result has 136 places, 127 transitions, 268 flow [2024-02-05 10:31:48,297 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=136, PETRI_TRANSITIONS=127} [2024-02-05 10:31:48,299 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, -1 predicate places. [2024-02-05 10:31:48,300 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 127 transitions, 268 flow [2024-02-05 10:31:48,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:31:48,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:31:48,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-05 10:31:48,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-05 10:31:48,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-02-05 10:31:48,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:31:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash 478867177, now seen corresponding path program 1 times [2024-02-05 10:31:48,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:31:48,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9048227] [2024-02-05 10:31:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:31:48,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:31:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:31:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:31:48,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:31:48,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9048227] [2024-02-05 10:31:48,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9048227] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:31:48,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:31:48,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:31:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851741909] [2024-02-05 10:31:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:31:48,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:31:48,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:31:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:31:48,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:31:48,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 135 [2024-02-05 10:31:48,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 127 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:31:48,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:31:48,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 135 [2024-02-05 10:31:48,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:31:55,168 INFO L124 PetriNetUnfolderBase]: 44688/95177 cut-off events. [2024-02-05 10:31:55,168 INFO L125 PetriNetUnfolderBase]: For 1307/1307 co-relation queries the response was YES. [2024-02-05 10:31:55,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159838 conditions, 95177 events. 44688/95177 cut-off events. For 1307/1307 co-relation queries the response was YES. Maximal size of possible extension queue 2140. Compared 1095202 event pairs, 2232 based on Foata normal form. 1307/86619 useless extension candidates. Maximal degree in co-relation 159825. Up to 58140 conditions per place. [2024-02-05 10:31:56,139 INFO L140 encePairwiseOnDemand]: 131/135 looper letters, 80 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2024-02-05 10:31:56,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 159 transitions, 500 flow [2024-02-05 10:31:56,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-05 10:31:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-05 10:31:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2024-02-05 10:31:56,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7555555555555555 [2024-02-05 10:31:56,143 INFO L175 Difference]: Start difference. First operand has 136 places, 127 transitions, 268 flow. Second operand 4 states and 408 transitions. [2024-02-05 10:31:56,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 159 transitions, 500 flow [2024-02-05 10:31:56,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 159 transitions, 496 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:31:56,509 INFO L231 Difference]: Finished difference. Result has 135 places, 125 transitions, 264 flow [2024-02-05 10:31:56,510 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=135, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=135, PETRI_TRANSITIONS=125} [2024-02-05 10:31:56,510 INFO L281 CegarLoopForPetriNet]: 137 programPoint places, -2 predicate places. [2024-02-05 10:31:56,511 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 125 transitions, 264 flow [2024-02-05 10:31:56,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:31:56,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:31:56,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-02-05 10:31:56,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-05 10:31:56,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 65 more)] === [2024-02-05 10:31:56,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:31:56,517 INFO L85 PathProgramCache]: Analyzing trace with hash 629877580, now seen corresponding path program 1 times [2024-02-05 10:31:56,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:31:56,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347902089] [2024-02-05 10:31:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:31:56,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:31:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:31:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:31:56,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:31:56,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347902089] [2024-02-05 10:31:56,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347902089] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:31:56,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:31:56,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:31:56,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785435125] [2024-02-05 10:31:56,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:31:56,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:31:56,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:31:56,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:31:56,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:31:56,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 135 [2024-02-05 10:31:56,642 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 125 transitions, 264 flow. Second operand has 4 states, 4 states have (on average 72.75) internal successors, (291), 4 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-05 10:31:56,642 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:31:56,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 135 [2024-02-05 10:31:56,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand