./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c --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/bench-exp2x9.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-ab2e0ac-m [2024-01-29 14:17:25,886 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:17:25,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:17:25,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:17:25,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:17:25,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:17:25,938 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:17:25,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:17:25,939 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:17:25,940 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:17:25,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:17:25,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:17:25,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:17:25,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:17:25,941 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:17:25,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:17:25,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:17:25,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:17:25,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:17:25,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:17:25,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:17:25,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:17:25,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:17:25,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:17:25,945 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:17:25,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:17:25,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:17:25,946 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:17:25,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:17:25,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:17:25,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:17:25,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:17:25,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:17:25,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:17:25,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:17:25,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:17:25,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:17:25,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:17:25,949 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:17:25,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:17:25,949 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:17:25,964 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:17:25,964 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:17:25,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:17:26,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:17:26,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:17:26,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:17:26,382 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:17:26,383 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:17:26,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-29 14:17:27,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:17:27,757 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:17:27,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-29 14:17:27,764 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea38b30a/1819555e087240558e755c790ef8b209/FLAG028ab4b2d [2024-01-29 14:17:27,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea38b30a/1819555e087240558e755c790ef8b209 [2024-01-29 14:17:27,776 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:17:27,777 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:17:27,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml [2024-01-29 14:17:27,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:17:27,894 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:17:27,896 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:17:27,896 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:17:27,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:17:27,901 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:17:27" (1/2) ... [2024-01-29 14:17:27,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac53675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:27, skipping insertion in model container [2024-01-29 14:17:27,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:17:27" (1/2) ... [2024-01-29 14:17:27,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@51a7d327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:17:27, skipping insertion in model container [2024-01-29 14:17:27,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:27" (2/2) ... [2024-01-29 14:17:27,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac53675 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:27, skipping insertion in model container [2024-01-29 14:17:27,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:27" (2/2) ... [2024-01-29 14:17:27,907 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:17:27,926 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:17:27,929 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,929 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,930 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,930 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,930 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,930 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,930 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,930 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,930 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,930 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,931 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,931 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,931 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,931 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x3 == 0U [2024-01-29 14:17:27,931 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x4 == 0U [2024-01-29 14:17:27,931 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] n == 0U [2024-01-29 14:17:27,931 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,931 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,932 INFO L98 nessWitnessExtractor]: Loop invariant at [L52-L60] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,932 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] n == 0U [2024-01-29 14:17:27,932 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] x4 == 0U [2024-01-29 14:17:27,932 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (0LL - (long long )x1) + (long long )x3 >= 0LL [2024-01-29 14:17:27,932 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (long long )x1 + (long long )x3 >= 0LL [2024-01-29 14:17:27,933 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x1 == 0U [2024-01-29 14:17:27,933 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (0LL - (long long )x1) - (long long )x3 >= 0LL [2024-01-29 14:17:27,933 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] n == 0U [2024-01-29 14:17:27,933 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x2 == 0U [2024-01-29 14:17:27,933 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x4 == 0U [2024-01-29 14:17:27,933 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (long long )x1 - (long long )x3 >= 0LL [2024-01-29 14:17:27,933 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x3 == 0U [2024-01-29 14:17:27,933 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,934 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,934 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,934 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L46] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,934 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,934 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,934 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x3 == 0U [2024-01-29 14:17:27,934 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x4 == 0U [2024-01-29 14:17:27,934 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] n == 0U [2024-01-29 14:17:27,935 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x2 == 0U [2024-01-29 14:17:27,935 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,935 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,935 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,935 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,935 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] n == 0U [2024-01-29 14:17:27,935 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,936 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,936 INFO L98 nessWitnessExtractor]: Loop invariant at [L66-L74] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,936 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,936 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,936 INFO L98 nessWitnessExtractor]: Loop invariant at [L80-L88] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,937 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,937 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,937 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] n == 0U [2024-01-29 14:17:27,937 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,938 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-29 14:17:27,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:17:28,113 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-01-29 14:17:28,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:17:28,137 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 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 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 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:17:28,192 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-01-29 14:17:28,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:17:28,204 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:17:28,204 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28 WrapperNode [2024-01-29 14:17:28,204 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:17:28,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:17:28,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:17:28,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:17:28,211 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 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,218 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 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,235 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-01-29 14:17:28,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:17:28,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:17:28,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:17:28,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:17:28,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,247 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,260 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-29 14:17:28,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,271 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,272 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:17:28,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:17:28,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:17:28,275 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:17:28,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (1/1) ... [2024-01-29 14:17:28,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:17:28,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:17:28,312 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) [2024-01-29 14:17:28,325 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 [2024-01-29 14:17:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:17:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:17:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:17:28,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:17:28,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:17:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:17:28,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:17:28,385 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 14:17:28,385 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 14:17:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:17:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:17:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:17:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:17:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:17:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:17:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:17:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:17:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:17:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:17:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:17:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:17:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:17:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:17:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:17:28,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:17:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:17:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:17:28,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:17:28,395 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:17:28,490 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:17:28,492 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:17:28,829 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:17:28,829 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:17:28,928 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:17:28,928 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-29 14:17:28,929 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:17:28 BoogieIcfgContainer [2024-01-29 14:17:28,929 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:17:28,932 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:17:28,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:17:28,935 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:17:28,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:17:27" (1/4) ... [2024-01-29 14:17:28,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f37104c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:17:28, skipping insertion in model container [2024-01-29 14:17:28,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:17:27" (2/4) ... [2024-01-29 14:17:28,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f37104c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:17:28, skipping insertion in model container [2024-01-29 14:17:28,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:17:28" (3/4) ... [2024-01-29 14:17:28,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f37104c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:17:28, skipping insertion in model container [2024-01-29 14:17:28,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:17:28" (4/4) ... [2024-01-29 14:17:28,939 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-01-29 14:17:28,954 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:17:28,954 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2024-01-29 14:17:28,954 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:17:29,045 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-29 14:17:29,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 155 transitions, 338 flow [2024-01-29 14:17:29,139 INFO L124 PetriNetUnfolderBase]: 4/151 cut-off events. [2024-01-29 14:17:29,140 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:17:29,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 151 events. 4/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 496 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 122. Up to 2 conditions per place. [2024-01-29 14:17:29,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 155 transitions, 338 flow [2024-01-29 14:17:29,154 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 150 transitions, 324 flow [2024-01-29 14:17:29,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:17:29,174 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;@4a249288, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:17:29,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 106 error locations. [2024-01-29 14:17:29,176 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:17:29,177 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:17:29,177 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:17:29,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:29,178 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:17:29,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-29 14:17:29,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:29,182 INFO L85 PathProgramCache]: Analyzing trace with hash 16538, now seen corresponding path program 1 times [2024-01-29 14:17:29,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:29,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878109] [2024-01-29 14:17:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:29,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:29,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:29,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:29,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878109] [2024-01-29 14:17:29,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878109] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:29,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:29,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:29,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780876394] [2024-01-29 14:17:29,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:29,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:29,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:29,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:29,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:29,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 155 [2024-01-29 14:17:29,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 150 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2024-01-29 14:17:29,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:29,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 155 [2024-01-29 14:17:29,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:41,379 INFO L124 PetriNetUnfolderBase]: 92052/155597 cut-off events. [2024-01-29 14:17:41,380 INFO L125 PetriNetUnfolderBase]: For 4187/4187 co-relation queries the response was YES. [2024-01-29 14:17:41,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275363 conditions, 155597 events. 92052/155597 cut-off events. For 4187/4187 co-relation queries the response was YES. Maximal size of possible extension queue 6014. Compared 1580624 event pairs, 73557 based on Foata normal form. 3/147222 useless extension candidates. Maximal degree in co-relation 253303. Up to 116425 conditions per place. [2024-01-29 14:17:42,573 INFO L140 encePairwiseOnDemand]: 148/155 looper letters, 56 selfloop transitions, 2 changer transitions 0/145 dead transitions. [2024-01-29 14:17:42,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 145 transitions, 430 flow [2024-01-29 14:17:42,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:42,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2024-01-29 14:17:42,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7225806451612903 [2024-01-29 14:17:42,585 INFO L175 Difference]: Start difference. First operand has 159 places, 150 transitions, 324 flow. Second operand 3 states and 336 transitions. [2024-01-29 14:17:42,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 145 transitions, 430 flow [2024-01-29 14:17:42,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 145 transitions, 414 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-29 14:17:42,686 INFO L231 Difference]: Finished difference. Result has 148 places, 145 transitions, 302 flow [2024-01-29 14:17:42,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=302, PETRI_PLACES=148, PETRI_TRANSITIONS=145} [2024-01-29 14:17:42,691 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -11 predicate places. [2024-01-29 14:17:42,691 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 145 transitions, 302 flow [2024-01-29 14:17:42,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2024-01-29 14:17:42,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:42,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:17:42,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:17:42,692 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-29 14:17:42,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:42,693 INFO L85 PathProgramCache]: Analyzing trace with hash 15910564, now seen corresponding path program 1 times [2024-01-29 14:17:42,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:42,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141409565] [2024-01-29 14:17:42,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:42,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:42,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:42,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141409565] [2024-01-29 14:17:42,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141409565] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:42,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:42,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:42,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337076489] [2024-01-29 14:17:42,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:42,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:42,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:42,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:42,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 155 [2024-01-29 14:17:42,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 145 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2024-01-29 14:17:42,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:42,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 155 [2024-01-29 14:17:42,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:17:52,059 INFO L124 PetriNetUnfolderBase]: 92052/155593 cut-off events. [2024-01-29 14:17:52,059 INFO L125 PetriNetUnfolderBase]: For 1008/1008 co-relation queries the response was YES. [2024-01-29 14:17:52,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273136 conditions, 155593 events. 92052/155593 cut-off events. For 1008/1008 co-relation queries the response was YES. Maximal size of possible extension queue 6014. Compared 1580710 event pairs, 73557 based on Foata normal form. 4/147223 useless extension candidates. Maximal degree in co-relation 273102. Up to 116424 conditions per place. [2024-01-29 14:17:53,329 INFO L140 encePairwiseOnDemand]: 149/155 looper letters, 56 selfloop transitions, 2 changer transitions 0/141 dead transitions. [2024-01-29 14:17:53,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 141 transitions, 410 flow [2024-01-29 14:17:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:17:53,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:17:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 335 transitions. [2024-01-29 14:17:53,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7204301075268817 [2024-01-29 14:17:53,335 INFO L175 Difference]: Start difference. First operand has 148 places, 145 transitions, 302 flow. Second operand 3 states and 335 transitions. [2024-01-29 14:17:53,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 141 transitions, 410 flow [2024-01-29 14:17:53,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 141 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:17:53,340 INFO L231 Difference]: Finished difference. Result has 144 places, 141 transitions, 294 flow [2024-01-29 14:17:53,341 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=144, PETRI_TRANSITIONS=141} [2024-01-29 14:17:53,341 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -15 predicate places. [2024-01-29 14:17:53,341 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 141 transitions, 294 flow [2024-01-29 14:17:53,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2024-01-29 14:17:53,342 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:17:53,342 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:17:53,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:17:53,342 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-29 14:17:53,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:17:53,343 INFO L85 PathProgramCache]: Analyzing trace with hash 493228088, now seen corresponding path program 1 times [2024-01-29 14:17:53,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:17:53,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028002503] [2024-01-29 14:17:53,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:17:53,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:17:53,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:17:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:17:53,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:17:53,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028002503] [2024-01-29 14:17:53,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028002503] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:17:53,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:17:53,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:17:53,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425833454] [2024-01-29 14:17:53,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:17:53,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:17:53,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:17:53,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:17:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:17:53,435 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 155 [2024-01-29 14:17:53,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 141 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2024-01-29 14:17:53,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:17:53,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 155 [2024-01-29 14:17:53,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:02,969 INFO L124 PetriNetUnfolderBase]: 92037/154439 cut-off events. [2024-01-29 14:18:02,969 INFO L125 PetriNetUnfolderBase]: For 1008/1008 co-relation queries the response was YES. [2024-01-29 14:18:03,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271952 conditions, 154439 events. 92037/154439 cut-off events. For 1008/1008 co-relation queries the response was YES. Maximal size of possible extension queue 6013. Compared 1554110 event pairs, 73557 based on Foata normal form. 2/146495 useless extension candidates. Maximal degree in co-relation 271916. Up to 116396 conditions per place. [2024-01-29 14:18:03,900 INFO L140 encePairwiseOnDemand]: 151/155 looper letters, 56 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-01-29 14:18:03,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 139 transitions, 406 flow [2024-01-29 14:18:03,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:03,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 339 transitions. [2024-01-29 14:18:03,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7290322580645161 [2024-01-29 14:18:03,902 INFO L175 Difference]: Start difference. First operand has 144 places, 141 transitions, 294 flow. Second operand 3 states and 339 transitions. [2024-01-29 14:18:03,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 139 transitions, 406 flow [2024-01-29 14:18:03,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 402 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:03,908 INFO L231 Difference]: Finished difference. Result has 142 places, 139 transitions, 290 flow [2024-01-29 14:18:03,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=142, PETRI_TRANSITIONS=139} [2024-01-29 14:18:03,910 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -17 predicate places. [2024-01-29 14:18:03,910 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 139 transitions, 290 flow [2024-01-29 14:18:03,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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) [2024-01-29 14:18:03,910 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:03,910 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:18:03,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:18:03,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-29 14:18:03,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:03,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1889797921, now seen corresponding path program 1 times [2024-01-29 14:18:03,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:03,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96288505] [2024-01-29 14:18:03,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:03,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat